About This Chapter
How it works:
- Identify which concepts are covered on your structure of matter homework.
- Find videos on those topics within this chapter.
- Watch fun videos, pausing and reviewing as needed.
- Complete sample problems and get instant feedback.
- Finish your structure of matter homework with ease!
Topics from your homework you'll be able to complete:
- Ways that compounds and molecules are built from elements
- Formation of solids with atoms and molecules
- Physical and chemical properties of matter
- States of matter
- Chemical vs. physical changes to matter
- The periodic table
1. What is An Atom? - Definition & Examples
After watching this video, you will be able to explain what an atom is, how it is structured, what they are made from, and give some examples of elements. A short quiz will follow.
2. What Are Elements?
Look around you. What do you see? Elements are everywhere. They are the building blocks of all matter on Earth. In this lesson, we will discuss what an element is, how elements are written as symbols, and how elements are the building blocks of all matter.
3. What Is a Compound? - Combining Elements with Chemical Bonds
After watching this video, you will be able to explain what a compound is, identify compounds versus regular molecules, and describe the two types of bonding that form compounds. A short quiz will follow.
4. How Compounds and Molecules Are Built From Elements
Did you know that elements are somewhat like people and have different personalities? Some elements like to be left alone. Others prefer to hang out with friends. We will discuss how elements build molecules and compounds and how these can be classified.
5. How Atoms & Molecules Form Solids: Patterns & Crystals
After watching this video, you will be able to explain how atoms and molecules form solids, whether in the form of random mixtures or crystal patterns. A short quiz will follow.
6. Matter: Physical and Chemical Properties
How are substances identified? There are two major ways we can describe a substance: physical properties and chemical properties. Learn about how chemists use properties to classify matter as either a mixture or a pure substance.
7. States of Matter: Solids, Liquids, Gases & Plasma
Learn the four states of matter in the universe: solid, liquid, gas and plasma. Learn about the differences in shape and volume among the four states, which of the states is the most common and why plasma conducts electricity.
8. States of Matter and Chemical Versus Physical Changes to Matter
The world around us is constantly changing. Chemists put those changes into two main categories: physical changes and chemical changes. This lesson will define and provide examples of each.
9. The Periodic Table: Properties of Groups and Periods
How is the periodic table like the map you used on your last road trip? In this lesson, you will be introduced to the periodic table, the road map of chemists. We will discuss how the elements are organized and how you can use this organization to identify some of their major physical properties.
10. What is a Quark? - Definition, Structure & Uses
Quarks are fundamental particles that are used by scientists to explain different types of phenomena. Learn more about them, subsequently testing your knowledge with a quiz.
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