Login

Holt Science Spectrum - Physical Science: Online Textbook Help

  • Course type: Self-paced
  • Available Lessons: 250
  • Average Lesson Length: 8 min
  • Eligible for Certificate: Yes

    Certificates show that you have completed the course. They do not provide credit.

  • Watch a preview:

    The Nature of Science
    chapter 1 / lesson 1
    The Nature of Science

Course Summary

This Holt Science Spectrum - Physical Science textbook companion course uses simple and fun videos to help students learn physical science and earn a better grade or prepare for a class exam. Each of the video lessons is about five minutes long and is sequenced to align with the chapters in the Holt Physical Science textbook.
Create An Account
To Start This Course Today
Used by over 30 million students worldwide
Create An Account
Try it free for 5 days
23 Chapters in Holt Science Spectrum - Physical Science: Online Textbook Help

23 chapters in Holt Science Spectrum - Physical Science: Online Textbook Help

Week {{::cp.getGoalWeekForTopic(0, 23)}}
Ch 1. Holt Physical Science Chapter 1: Introduction to Science {{cp.topicAssetIdToProgress[58225].percentComplete}}% complete
Course Progress Best Score
Lesson 1 - The Nature of Science Score: {{cp.lessonAssetIdToProgress[20925].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20925].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Experimental Design in Science: Definition & Method Score: {{cp.lessonAssetIdToProgress[3602].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3602].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - What is Critical Thinking? - Definition, Skills & Meaning Score: {{cp.lessonAssetIdToProgress[5750].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5750].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - The Scientific Method: Steps, Terms & Examples Score: {{cp.lessonAssetIdToProgress[3604].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3604].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - How to Convert Units in the Metric System Score: {{cp.lessonAssetIdToProgress[18596].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[18596].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - The Metric System: Units and Conversion Score: {{cp.lessonAssetIdToProgress[1600].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1600].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Using Visuals to Present Data: Textual Graphics vs. Visual Graphics Score: {{cp.lessonAssetIdToProgress[21856].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[21856].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Interpreting Graphical Representations Score: {{cp.lessonAssetIdToProgress[29550].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[29550].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Understanding Bar Graphs and Pie Charts Score: {{cp.lessonAssetIdToProgress[2386].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2386].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Significant Figures and Scientific Notation Score: {{cp.lessonAssetIdToProgress[1601].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1601].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Scientific Notation: Practice Problems Score: {{cp.lessonAssetIdToProgress[24973].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[24973].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Evaluating Data: Precision, Accuracy & Error Score: {{cp.lessonAssetIdToProgress[37980].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[37980].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(1, 23)}}
Course Progress Best Score
Lesson 1 - Matter: Physical and Chemical Properties Score: {{cp.lessonAssetIdToProgress[1603].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1603].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - What Are Elements? Score: {{cp.lessonAssetIdToProgress[3218].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3218].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - How Compounds and Molecules Are Built From Elements Score: {{cp.lessonAssetIdToProgress[3219].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3219].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Pure Substance in Chemistry: Definition, Properties & Examples Score: {{cp.lessonAssetIdToProgress[8565].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8565].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Creating Mixtures by Combining Elements & Compounds Score: {{cp.lessonAssetIdToProgress[20107].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20107].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Classifying Substances by Their Physical Properties Score: {{cp.lessonAssetIdToProgress[45244].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45244].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - States of Matter and Chemical Versus Physical Changes to Matter Score: {{cp.lessonAssetIdToProgress[1720].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1720].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Chromatography, Distillation and Filtration: Methods of Separating Mixtures Score: {{cp.lessonAssetIdToProgress[1604].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1604].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - How to Construct Graphs from Data Score: {{cp.lessonAssetIdToProgress[17245].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[17245].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Density: Definition, Formula & Practice Problems Score: {{cp.lessonAssetIdToProgress[8570].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8570].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(2, 23)}}
Course Progress Best Score
Lesson 1 - The Kinetic Theory of Matter: Definition & The Four States of Matter Score: {{cp.lessonAssetIdToProgress[19240].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[19240].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - States of Matter: Solids, Liquids, Gases, & Plasma Score: {{cp.lessonAssetIdToProgress[5362].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5362].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Kinetic Energy: Examples & Definition Score: {{cp.lessonAssetIdToProgress[3499].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3499].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - What is Thermal Energy? - Definition & Examples Score: {{cp.lessonAssetIdToProgress[2539].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2539].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition Score: {{cp.lessonAssetIdToProgress[5363].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5363].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Fluids in Physics: Definition and Characteristics Score: {{cp.lessonAssetIdToProgress[15417].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15417].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Buoyancy: Calculating Force and Density with Archimedes' Principle Score: {{cp.lessonAssetIdToProgress[15419].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15419].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Applications of Pascal's Principle Score: {{cp.lessonAssetIdToProgress[31873].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[31873].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - The Kinetic Molecular Theory: Properties of Gases Score: {{cp.lessonAssetIdToProgress[1650].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1650].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - The Ideal Gas Law and the Gas Constant Score: {{cp.lessonAssetIdToProgress[1656].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1656].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(3, 23)}}
Course Progress Best Score
Lesson 1 - What is An Atom? - Definition & Examples Score: {{cp.lessonAssetIdToProgress[45233].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45233].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Atomic Number and Mass Number Score: {{cp.lessonAssetIdToProgress[1607].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1607].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - The Periodic Table: Properties of Groups and Periods Score: {{cp.lessonAssetIdToProgress[1614].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1614].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Alkali Metals (Group 1A Elements): Definition & Properties Score: {{cp.lessonAssetIdToProgress[38437].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38437].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Alkaline Earths (Group 2A Elements): Definition & Properties Score: {{cp.lessonAssetIdToProgress[38438].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38438].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Group 3A Elements: Definition & Properties Score: {{cp.lessonAssetIdToProgress[38439].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38439].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Group 4A Elements: Definition & Properties Score: {{cp.lessonAssetIdToProgress[38440].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38440].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Group 5A Elements: Definition & Properties Score: {{cp.lessonAssetIdToProgress[38441].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38441].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Chalcogens (Group 6A Elements): Definition & Properties Score: {{cp.lessonAssetIdToProgress[38442].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38442].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Halogens (Group 7A Elements): Definition & Properties Score: {{cp.lessonAssetIdToProgress[38443].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38443].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Noble Gases (Group 8A Elements): Definition & Properties Score: {{cp.lessonAssetIdToProgress[38444].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38444].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - What Is a Semiconductor? - Devices, Properties & Fundamentals Score: {{cp.lessonAssetIdToProgress[5543].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5543].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Avogadro's Number: Using the Mole to Count Atoms Score: {{cp.lessonAssetIdToProgress[1609].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1609].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - Conversion Factor in Chemistry: Definition, Formula & Practice Problems Score: {{cp.lessonAssetIdToProgress[8573].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8573].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - Converting Between Mass & Amount Score: {{cp.lessonAssetIdToProgress[58229].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58229].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(4, 23)}}
Course Progress Best Score
Lesson 1 - Bond Length & Angle in Chemical Compounds Score: {{cp.lessonAssetIdToProgress[58231].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58231].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - How a Compound's Chemical Structure Affects Its Properties Score: {{cp.lessonAssetIdToProgress[58232].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58232].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Chemical Bonds II: Ionic Score: {{cp.lessonAssetIdToProgress[280].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[280].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Chemical Bonds I: Covalent Score: {{cp.lessonAssetIdToProgress[279].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[279].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Metallic Bonding: The Electron-Sea Model & Why Metals Are Good Electrical Conductors Score: {{cp.lessonAssetIdToProgress[1640].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1640].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Lewis Dot Structures: Polyatomic Ions Score: {{cp.lessonAssetIdToProgress[1633].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1633].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Naming Ionic Compounds: Simple Binary, Transition Metal & Polyatomic Ion Compounds Score: {{cp.lessonAssetIdToProgress[1630].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1630].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Writing Ionic Compound Formulas: Binary & Polyatomic Compounds Score: {{cp.lessonAssetIdToProgress[6566].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[6566].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Covalent Compounds: Properties, Naming & Formation Score: {{cp.lessonAssetIdToProgress[1631].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1631].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Calculating Percent Composition and Determining Empirical Formulas Score: {{cp.lessonAssetIdToProgress[1674].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1674].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Using Atoms and Ions to Determine Molecular Formulas Score: {{cp.lessonAssetIdToProgress[3220].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3220].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - What are Simple Organic Compounds in Chemistry? - Types, Groups & Examples Score: {{cp.lessonAssetIdToProgress[8920].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8920].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Biochemical Compounds: Definition & Classes Score: {{cp.lessonAssetIdToProgress[58233].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58233].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(5, 23)}}
Course Progress Best Score
Lesson 1 - How Chemical Reactions Form New Products Score: {{cp.lessonAssetIdToProgress[45238].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45238].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - What is Chemical Energy? - Definition & Examples Score: {{cp.lessonAssetIdToProgress[2541].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2541].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Endothermic and Exothermic Reactions Score: {{cp.lessonAssetIdToProgress[5365].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5365].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Decomposition and Synthesis Reactions Score: {{cp.lessonAssetIdToProgress[1677].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1677].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Writing and Balancing Combustion Reactions Score: {{cp.lessonAssetIdToProgress[1690].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1690].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Single-Displacement Reaction: Definition & Examples Score: {{cp.lessonAssetIdToProgress[28338].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[28338].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Double Displacement Reaction: Definition & Examples Score: {{cp.lessonAssetIdToProgress[28340].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[28340].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Free Radical Reactions: Definition & Examples Score: {{cp.lessonAssetIdToProgress[58235].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58235].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Redox (Oxidation-Reduction) Reactions: Definitions and Examples Score: {{cp.lessonAssetIdToProgress[2881].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2881].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Chemical Reactions and Balancing Chemical Equations Score: {{cp.lessonAssetIdToProgress[1668].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1668].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Mole-to-Mole Ratios and Calculations of a Chemical Equation Score: {{cp.lessonAssetIdToProgress[1669].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1669].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - The Law of Definite Proportions: Definition & Examples Score: {{cp.lessonAssetIdToProgress[16877].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[16877].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Rate of a Chemical Reaction: Modifying Factors Score: {{cp.lessonAssetIdToProgress[1702].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1702].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - Equilibrium: Chemical and Dynamic Score: {{cp.lessonAssetIdToProgress[1692].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1692].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - LeChatelier's Principle: Disruption and Re-Establishment of Equilibrium Score: {{cp.lessonAssetIdToProgress[1693].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1693].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(6, 23)}}
Course Progress Best Score
Lesson 1 - Heterogeneous Mixture: Definition & Examples Score: {{cp.lessonAssetIdToProgress[8575].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8575].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Homogeneous Mixture: Definition & Examples Score: {{cp.lessonAssetIdToProgress[8591].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8591].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Solutions, Solutes, and Solvents Score: {{cp.lessonAssetIdToProgress[454].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[454].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Polar Molecule: Definition & Examples Score: {{cp.lessonAssetIdToProgress[16990].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[16990].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Properties of Water Score: {{cp.lessonAssetIdToProgress[282].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[282].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Nonpolar Covalent Bond: Definition & Examples Score: {{cp.lessonAssetIdToProgress[16860].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[16860].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - The Rate of Dissolution: Factors and Definition Score: {{cp.lessonAssetIdToProgress[1660].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1660].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Solubility and Solubility Curves Score: {{cp.lessonAssetIdToProgress[1662].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1662].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Calculating Molarity and Molality Concentration Score: {{cp.lessonAssetIdToProgress[1663].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1663].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(7, 23)}}
Course Progress Best Score
Lesson 1 - Acids and Bases Score: {{cp.lessonAssetIdToProgress[283].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[283].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Solutions, Electrolytes and Nonelectrolytes Score: {{cp.lessonAssetIdToProgress[1661].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1661].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Acidic, Basic & Neutral Solutions: Determining pH Score: {{cp.lessonAssetIdToProgress[45239].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45239].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - The pH Scale: Calculating the pH of a Solution Score: {{cp.lessonAssetIdToProgress[1682].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1682].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Neutralization and Acid-Base Reactions Score: {{cp.lessonAssetIdToProgress[1680].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1680].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - What is Salt in Chemistry? - Definition & Formula Score: {{cp.lessonAssetIdToProgress[16838].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[16838].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Home Products wiith Acids, Bases & Salts Score: {{cp.lessonAssetIdToProgress[58239].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58239].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(8, 23)}}
Course Progress Best Score
Lesson 1 - What Are Radioactive Materials? - Definition, Examples, Uses & Benefits Score: {{cp.lessonAssetIdToProgress[19238].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[19238].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Types of Radioactive Decay and Their Effect on the Nucleus Score: {{cp.lessonAssetIdToProgress[1622].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1622].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Half-life: Calculating Radioactive Decay and Interpreting Decay Graphs Score: {{cp.lessonAssetIdToProgress[1624].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1624].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Fusion, Fission, Carbon Dating, Tracers & Imaging: Applications of Nuclear Chemistry Score: {{cp.lessonAssetIdToProgress[1626].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1626].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Critical Mass & Controlling Chain Reactions Score: {{cp.lessonAssetIdToProgress[58241].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58241].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Background Radiation: Definition, Causes & Examples Score: {{cp.lessonAssetIdToProgress[9438].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9438].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(9, 23)}}
Course Progress Best Score
Lesson 1 - What Is Motion? - Definition & Equations Score: {{cp.lessonAssetIdToProgress[35360].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[35360].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Distance and Displacement in Physics: Definition and Examples Score: {{cp.lessonAssetIdToProgress[15054].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15054].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Speed and Velocity: Concepts and Formulas Score: {{cp.lessonAssetIdToProgress[2552].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2552].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Using Position vs. Time Graphs to Describe Motion Score: {{cp.lessonAssetIdToProgress[15061].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15061].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Determining Slope for Position vs. Time Graphs Score: {{cp.lessonAssetIdToProgress[15062].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15062].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - What is Acceleration? - Definition and Formula Score: {{cp.lessonAssetIdToProgress[2553].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2553].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Determining the Acceleration of an Object Score: {{cp.lessonAssetIdToProgress[14601].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14601].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Determining Acceleration Using the Slope of a Velocity vs. Time Graph Score: {{cp.lessonAssetIdToProgress[15064].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15064].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Force: Definition and Types Score: {{cp.lessonAssetIdToProgress[14597].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14597].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Forces: Balanced and Unbalanced Score: {{cp.lessonAssetIdToProgress[14599].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14599].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(10, 23)}}
Course Progress Best Score
Lesson 1 - Newton's First Law of Motion: Examples of the Effect of Force on Motion Score: {{cp.lessonAssetIdToProgress[2555].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2555].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Distinguishing Between Inertia and Mass Score: {{cp.lessonAssetIdToProgress[14594].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14594].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Newton's Second Law of Motion: The Relationship Between Force and Acceleration Score: {{cp.lessonAssetIdToProgress[2556].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2556].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Newton's Laws and Weight, Mass & Gravity Score: {{cp.lessonAssetIdToProgress[2558].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2558].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - The Law of Universal Gravitation: Definition, Importance & Examples Score: {{cp.lessonAssetIdToProgress[19244].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[19244].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Air Resistance and Free Fall Score: {{cp.lessonAssetIdToProgress[14603].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14603].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Projectile Motion: Definition and Examples Score: {{cp.lessonAssetIdToProgress[15071].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[15071].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Newton's Third Law of Motion: Examples of the Relationship Between Two Forces Score: {{cp.lessonAssetIdToProgress[2557].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2557].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - What is Momentum? - Definition, Equation, Units & Principle Score: {{cp.lessonAssetIdToProgress[16920].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[16920].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(11, 23)}}
Course Progress Best Score
Lesson 1 - Work: Definition, Characteristics, and Examples Score: {{cp.lessonAssetIdToProgress[14609].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14609].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Power: Definition and Mathematics Score: {{cp.lessonAssetIdToProgress[14613].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[14613].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Mechanical Advantage: Definition, Calculations & Equations Score: {{cp.lessonAssetIdToProgress[55548].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[55548].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Simple Machines: Lever, Inclined Plane & Pulley Score: {{cp.lessonAssetIdToProgress[30374].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[30374].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Understanding the Efficiency of Compound Machines Score: {{cp.lessonAssetIdToProgress[55549].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[55549].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - What is Energy? - Definition and Significance in Nature Score: {{cp.lessonAssetIdToProgress[2537].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2537].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Gravitational Potential Energy: Definition, Formula & Examples Score: {{cp.lessonAssetIdToProgress[28414].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[28414].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Kinetic Energy to Potential Energy: Relationship in Different Energy Types Score: {{cp.lessonAssetIdToProgress[2545].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2545].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - What is Mechanical Energy? - Definition & Examples Score: {{cp.lessonAssetIdToProgress[2538].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2538].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Energy Transformation: Definition, Types & Examples Score: {{cp.lessonAssetIdToProgress[9353].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9353].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - First Law of Thermodynamics: Law of Conservation of Energy Score: {{cp.lessonAssetIdToProgress[2544].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2544].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Energy Conservation and Energy Efficiency: Examples and Differences Score: {{cp.lessonAssetIdToProgress[9626].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9626].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(12, 23)}}
Course Progress Best Score
Lesson 1 - What is Temperature? - Definition & Measurement Score: {{cp.lessonAssetIdToProgress[4516].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4516].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Measuring Temperature in the Lab: Instruments & Process Score: {{cp.lessonAssetIdToProgress[45158].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45158].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Degrees Fahrenheit: Definition & Conversion Score: {{cp.lessonAssetIdToProgress[4521].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4521].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - What is Heat? - Definition & Explanation Score: {{cp.lessonAssetIdToProgress[4517].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4517].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Mechanisms of Heat Transfer: Conduction, Convection & Radiation Score: {{cp.lessonAssetIdToProgress[12475].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[12475].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - How to Calculate Specific Heat Capacity for Different Substances Score: {{cp.lessonAssetIdToProgress[2548].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2548].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - The Laws of Thermodynamics Score: {{cp.lessonAssetIdToProgress[284].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[284].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Entropy: Equation & Calculations Score: {{cp.lessonAssetIdToProgress[29869].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[29869].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(13, 23)}}
Course Progress Best Score
Lesson 1 - Waves: Types & Definition Score: {{cp.lessonAssetIdToProgress[4578].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4578].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Vibrations and Waves: Energy and Motion Score: {{cp.lessonAssetIdToProgress[4910].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4910].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Transverse & Longitudinal Waves: Definition & Examples Score: {{cp.lessonAssetIdToProgress[4911].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4911].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Wave Parameters: Wavelength, Amplitude, Period, Frequency & Speed Score: {{cp.lessonAssetIdToProgress[5506].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5506].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - What is Sound? - Definition and Factors Affecting the Speed of Sound Score: {{cp.lessonAssetIdToProgress[4912].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4912].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - The Doppler Effect: Definition, Examples & Applications Score: {{cp.lessonAssetIdToProgress[4922].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4922].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Reflection: Angle of Incidence and Curved Surfaces Score: {{cp.lessonAssetIdToProgress[4915].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4915].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Diffraction: Relation to Sound & Light and Effects of Wavelength Score: {{cp.lessonAssetIdToProgress[4920].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4920].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Refraction & Dispersion: Definition, Snell's Law & Index of Refraction Score: {{cp.lessonAssetIdToProgress[4919].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4919].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Constructive and Destructive Interference Score: {{cp.lessonAssetIdToProgress[4921].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4921].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(14, 23)}}
Course Progress Best Score
Lesson 1 - What are Sound Waves? - Definition, Types & Uses Score: {{cp.lessonAssetIdToProgress[9462].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9462].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Pitch and Volume in Sound Waves Score: {{cp.lessonAssetIdToProgress[5494].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[5494].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Resonance: Definition & Transmission of Waves Score: {{cp.lessonAssetIdToProgress[4916].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4916].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - What is Light? Score: {{cp.lessonAssetIdToProgress[31423].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[31423].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Intensity in Physics: Definition & Measurement Score: {{cp.lessonAssetIdToProgress[24361].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[24361].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - The 7 Major Regions of the Electromagnetic Spectrum Score: {{cp.lessonAssetIdToProgress[6836].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[6836].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Light Rays: Definition, Types & Sources Score: {{cp.lessonAssetIdToProgress[9372].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9372].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Diffuse Reflection: Definition, Examples & Surfaces Score: {{cp.lessonAssetIdToProgress[6857].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[6857].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Ray Tracing with Mirrors: Reflected Images Score: {{cp.lessonAssetIdToProgress[32159].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[32159].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Using Equations to Answer Mirror Questions Score: {{cp.lessonAssetIdToProgress[32160].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[32160].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Visible Spectrum: Definition, Wavelengths & Colors Score: {{cp.lessonAssetIdToProgress[7670].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[7670].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Color: White Light, Reflection & Absorption Score: {{cp.lessonAssetIdToProgress[4918].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4918].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - Reflection & Refraction of Light: Physics Lab Score: {{cp.lessonAssetIdToProgress[38425].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[38425].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - Refracting & Reflecting Telescopes: Key Concepts Score: {{cp.lessonAssetIdToProgress[31436].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[31436].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - What is a Prism? - Definition & Refraction Score: {{cp.lessonAssetIdToProgress[9364].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9364].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(15, 23)}}
Course Progress Best Score
Lesson 1 - Electric Charge and Force: Definition, Repulsion & Attraction Score: {{cp.lessonAssetIdToProgress[3968].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3968].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Insulators and Conductors: Examples, Definitions & Qualities Score: {{cp.lessonAssetIdToProgress[3972].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3972].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Electric Field & the Movement of Charge Score: {{cp.lessonAssetIdToProgress[42974].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[42974].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Electric Potential Energy: Definition & Formula Score: {{cp.lessonAssetIdToProgress[42975].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[42975].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Finding the Electric Potential Difference Between Two Points Score: {{cp.lessonAssetIdToProgress[42976].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[42976].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Electrochemical Cells and Electrochemistry Score: {{cp.lessonAssetIdToProgress[1688].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1688].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - What is Electric Current? - Definition, Unit & Types Score: {{cp.lessonAssetIdToProgress[3974].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3974].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Electrical Resistance: Definition, Unit & Variables Score: {{cp.lessonAssetIdToProgress[3975].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3975].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Electric Circuit Fundamentals: Components & Types Score: {{cp.lessonAssetIdToProgress[3977].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3977].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - What is Electric Power? Score: {{cp.lessonAssetIdToProgress[3978].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3978].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - The Differences Between Fuses & Circuit Breakers Score: {{cp.lessonAssetIdToProgress[58249].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[58249].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(16, 23)}}
Course Progress Best Score
Lesson 1 - Magnetic Force: Definition, Poles & Dipoles Score: {{cp.lessonAssetIdToProgress[7960].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[7960].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - What is a Magnetic Field? Score: {{cp.lessonAssetIdToProgress[7961].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[7961].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - How Magnetic Fields Are Created Score: {{cp.lessonAssetIdToProgress[7962].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[7962].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - What is Solenoid? - Definition, Uses & Examples Score: {{cp.lessonAssetIdToProgress[28407].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[28407].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Electric Motors & Generators: Converting Between Electrical and Mechanical Energy Score: {{cp.lessonAssetIdToProgress[17987].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[17987].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Electromagnetic Induction: Definition & Variables that Affect Induction Score: {{cp.lessonAssetIdToProgress[7964].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[7964].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Electromagnetic Induction: Conductor to Conductor & Transformers Score: {{cp.lessonAssetIdToProgress[7965].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[7965].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(18, 23)}}
Course Progress Best Score
Lesson 1 - What are Planets? - Facts & Definition Score: {{cp.lessonAssetIdToProgress[4565].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4565].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Solar System Overview Score: {{cp.lessonAssetIdToProgress[29079].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[29079].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Satellite Formation in Our Solar System Score: {{cp.lessonAssetIdToProgress[29945].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[29945].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Moon Phases: Names & Sequence Score: {{cp.lessonAssetIdToProgress[31122].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[31122].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - What Is a Solar Eclipse? Score: {{cp.lessonAssetIdToProgress[31125].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[31125].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Inner Planets of the Solar System: Mercury, Venus, Earth & Mars Score: {{cp.lessonAssetIdToProgress[2963].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2963].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Asteroids, Meteorites & Comets: Definitions and Characteristics Score: {{cp.lessonAssetIdToProgress[2969].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2969].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Dwarf Planets of the Solar System: Pluto, Eris, Haumea & Ceres Score: {{cp.lessonAssetIdToProgress[2968].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2968].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Outer Planets of the Solar System: Jupiter, Saturn, Uranus, Neptune Score: {{cp.lessonAssetIdToProgress[2967].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2967].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Tycho Brahe and Copernicus Take On the Known Universe Score: {{cp.lessonAssetIdToProgress[1141].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1141].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Formation of the Moon: Theories Score: {{cp.lessonAssetIdToProgress[2965].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2965].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Planets Around Distant Stars Score: {{cp.lessonAssetIdToProgress[29103].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[29103].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(19, 23)}}
Course Progress Best Score
Lesson 1 - Stars as a Source of Light: Definition & Explanation Score: {{cp.lessonAssetIdToProgress[45237].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45237].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Astronomical Units & Light Years: Definition & Examples Score: {{cp.lessonAssetIdToProgress[45236].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45236].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Types of Telescopes: Radio, Reflecting & Refracting Telescopes Score: {{cp.lessonAssetIdToProgress[2956].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2956].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Structure of the Sun Score: {{cp.lessonAssetIdToProgress[3200].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3200].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Red Giant, Horizontal & Asymptotic Giant Branch Stars Score: {{cp.lessonAssetIdToProgress[35738].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[35738].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - What Are White Dwarfs? - Stellar Remnant Characteristics Score: {{cp.lessonAssetIdToProgress[20952].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[20952].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Supernova: How Massive Stars Explode Score: {{cp.lessonAssetIdToProgress[26045].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[26045].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Life Cycle of Black Holes Score: {{cp.lessonAssetIdToProgress[2962].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2962].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - Solar System, Galaxy, & Universe: Definitions & Difference Score: {{cp.lessonAssetIdToProgress[28124].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[28124].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - What Are the Different Types of Galaxy Clusters? Score: {{cp.lessonAssetIdToProgress[27692].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[27692].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Galaxy Formation: Spiral, Elliptical & Irregular Galaxies Score: {{cp.lessonAssetIdToProgress[2957].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2957].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - The Formation of the Milky Way Galaxy Score: {{cp.lessonAssetIdToProgress[27124].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[27124].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - The Structure of Our Galaxy Score: {{cp.lessonAssetIdToProgress[26454].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[26454].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - What Are Quasars? Score: {{cp.lessonAssetIdToProgress[27694].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[27694].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - Origins of the Universe: The Big Bang and Expanding & Contracting Universes Score: {{cp.lessonAssetIdToProgress[2953].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2953].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(20, 23)}}
Course Progress Best Score
Lesson 1 - Earth's Internal Layers: Crust, Mantle & Core Score: {{cp.lessonAssetIdToProgress[13473].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13473].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Plate Tectonics: A Unified Theory for Change of the Earth's Surface Score: {{cp.lessonAssetIdToProgress[2532].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2532].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Causes of Tectonic Plate Movement Score: {{cp.lessonAssetIdToProgress[2533].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2533].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Plate Boundaries: Convergent, Divergent, and Transform Boundaries Score: {{cp.lessonAssetIdToProgress[2534].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2534].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Subduction Zone: Definition, Location & Example Score: {{cp.lessonAssetIdToProgress[17045].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[17045].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - What is an Earthquake? - Definition and Components Score: {{cp.lessonAssetIdToProgress[12482].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[12482].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Seismic Wave: Definition, Types & Frequency Score: {{cp.lessonAssetIdToProgress[17048].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[17048].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Using the Richter Scale to Measure Earthquakes Score: {{cp.lessonAssetIdToProgress[12486].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[12486].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - What is a Volcano? - Definition & Eruptions Score: {{cp.lessonAssetIdToProgress[13129].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13129].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Types of Volcanoes: Shield, Cinder Cones & Composite Cones Score: {{cp.lessonAssetIdToProgress[13130].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[13130].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Rocks and Minerals: Definitions and Differences Score: {{cp.lessonAssetIdToProgress[9095].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9095].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - Rock Cycle: Igneous, Sedimentary, and Metamorphic Rocks Score: {{cp.lessonAssetIdToProgress[2529].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2529].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - What is Relative Dating? - Law of Superposition, Principles of Original Horizontality & Cross-Cutting Relationships Score: {{cp.lessonAssetIdToProgress[8869].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8869].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - Principles of Radiometric Dating Score: {{cp.lessonAssetIdToProgress[8870].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[8870].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - Effect of Erosion and Deposition on Landforms Score: {{cp.lessonAssetIdToProgress[2526].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2526].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(21, 23)}}
Course Progress Best Score
Lesson 1 - The Structure of the Atmosphere Score: {{cp.lessonAssetIdToProgress[12473].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[12473].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Greenhouse Gases and the Enhanced Greenhouse Effect Score: {{cp.lessonAssetIdToProgress[10321].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10321].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - Global Warming: Atmospheric Causes and Effect on Climate Score: {{cp.lessonAssetIdToProgress[2523].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2523].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - The Water Cycle: Precipitation, Condensation, and Evaporation Score: {{cp.lessonAssetIdToProgress[2524].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2524].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Temperature, Clouds, Wind & Humidity on the Atmospheric Cycle Score: {{cp.lessonAssetIdToProgress[2521].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[2521].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Measures of Water Vapor Content Score: {{cp.lessonAssetIdToProgress[45314].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45314].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Pressure: Definition, Units, and Conversions Score: {{cp.lessonAssetIdToProgress[1651].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[1651].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - What is Wind? - Definition, Causes, Properties & Characteristics Score: {{cp.lessonAssetIdToProgress[17046].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[17046].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - The Global Wind Patterns of the Three Wind Belts Score: {{cp.lessonAssetIdToProgress[45334].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[45334].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - Types of Air Masses & Their Effect on Weather Score: {{cp.lessonAssetIdToProgress[11548].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11548].bestScoreQuestions}}  Take Quiz Optional
Lesson 11 - Understanding Weather Fronts: Types & Their Effect on Weather Score: {{cp.lessonAssetIdToProgress[11549].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11549].bestScoreQuestions}}  Take Quiz Optional
Lesson 12 - What Are Thunderstorms? - Definition, Types & Formation Score: {{cp.lessonAssetIdToProgress[11551].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11551].bestScoreQuestions}}  Take Quiz Optional
Lesson 13 - What Are Tornadoes? - Definition, Causes & The Enhanced Fujita Scale Score: {{cp.lessonAssetIdToProgress[11550].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11550].bestScoreQuestions}}  Take Quiz Optional
Lesson 14 - Hurricanes: Types, Formation, Causes & Effects Score: {{cp.lessonAssetIdToProgress[11553].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11553].bestScoreQuestions}}  Take Quiz Optional
Lesson 15 - Weather vs. Climate: Definition, Differences & Effects Score: {{cp.lessonAssetIdToProgress[11544].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[11544].bestScoreQuestions}}  Take Quiz Optional
Week {{::cp.getGoalWeekForTopic(22, 23)}}
Course Progress Best Score
Lesson 1 - The Environment, Levels of Ecology and Ecosystems Score: {{cp.lessonAssetIdToProgress[405].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[405].bestScoreQuestions}}  Take Quiz Optional
Lesson 2 - Ecological Succession: From Pioneer to Climax Communities Score: {{cp.lessonAssetIdToProgress[416].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[416].bestScoreQuestions}}  Take Quiz Optional
Lesson 3 - What Are Fossil Fuels? - Definition, Advantages & Disadvantages Score: {{cp.lessonAssetIdToProgress[4823].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4823].bestScoreQuestions}}  Take Quiz Optional
Lesson 4 - Renewable & Non-Renewable Resources: Definition & Differences Score: {{cp.lessonAssetIdToProgress[12047].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[12047].bestScoreQuestions}}  Take Quiz Optional
Lesson 5 - Geothermal Energy: Advantages and Disadvantages Score: {{cp.lessonAssetIdToProgress[9625].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[9625].bestScoreQuestions}}  Take Quiz Optional
Lesson 6 - Hydroelectric Energy: Definition, Uses, Advantages & Disadvantages Score: {{cp.lessonAssetIdToProgress[12049].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[12049].bestScoreQuestions}}  Take Quiz Optional
Lesson 7 - Voltage Sources: Energy Conversion and Examples Score: {{cp.lessonAssetIdToProgress[3973].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[3973].bestScoreQuestions}}  Take Quiz Optional
Lesson 8 - Pollution: Physical, Chemical & Biological Score: {{cp.lessonAssetIdToProgress[10597].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10597].bestScoreQuestions}}  Take Quiz Optional
Lesson 9 - What Is Eutrophication? - Definition, Causes & Effects Score: {{cp.lessonAssetIdToProgress[4842].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[4842].bestScoreQuestions}}  Take Quiz Optional
Lesson 10 - The 3 Rs of Reducing Solid Waste: Reuse, Reduce & Recycle Score: {{cp.lessonAssetIdToProgress[10356].bestScoreCorrect}}/{{cp.lessonAssetIdToProgress[10356].bestScoreQuestions}}  Take Quiz Optional

Earning College Credit

Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Practice Final Exam
Practice Chapter Exams
Support