About This Chapter
Experimental Design & Measurement - Chapter Summary
Included in this chapter on experimental design and measurement are discussions on rules for significant digits and practice problems for interpreting graphs and charts of scientific data. There is also an example of a responding variable. After completing the chapter, you should be able to:
- Explain how scientists turn hypotheses into laws
- Discuss how science experiments are conducted and define controlled variables
- Recall why manipulated variables are important in scientific testing
- Describe how a responding variable relates to other variables in an experiment
- Define and provide examples of significant digits
- Solve complex problems with graphs and charts
- Create an algorithm
- Interpret WHMIS symbols
A brief quiz is available after each lesson and the quizzes can be printed for use as another study tool. The quizzes link back to specific topics in the video, so if you get a question wrong you can review that topic with just one click. In addition to the flexibility offered by online learning, you can use the Help feature to submit questions to an instructor if you get stuck on a topic.
1. Experimental Design in Science: Definition & Method
What are the requirements of a scientific experiment? How do scientists turn hypotheses into theories and laws? Learn the answers to these questions and more in this lesson on the design of scientific experiments.
2. Variables & Controls in a Science Experiment
After watching this video, you will be able to explain how science experiments are conducted; what variables, controlled variables, and controls are: and why these things are important. A short quiz will follow.
3. Manipulated Variable: Definition & Example
In this lesson, you will discover more about how scientists design experiments. You will also learn the definition of the manipulated variable and see examples that show why it is an important part of scientific testing.
4. What is a Responding Variable? - Definition & Example
In this lesson, you will learn what a responding variable is, and how it relates to the other variables in an experiment. You will also read an example of a simple experiment, and try to determine what the responding variable is.
5. What Are Significant Digits? - Definition, Rules & Examples
In this lesson, you will learn about significant digits and the rules used to identify the number of digits that are significant in a figure. We will also discuss the relevance of significant figures in our experiences.
6. Interpreting Graphs and Charts of Scientific Data: Practice Problems
Do charts and graphs make problem-solving difficult? Complex problems with visual representations can drain your brain during a test. In this lesson, learn three simple rules for solving problems with charts and graphs. We'll try them out as we walk through two sample problems.
7. What is an Algorithm? - Definition & Examples
Algorithms are everywhere. Computers use them, your friends use them, even you use them. Learn more about what algorithms are, as well as create some algorithms of your own.
8. WHMIS Symbols: Interpreting, Handling, Storing & Disposing Materials
The goal of this lesson will be to gain an understanding of the Workplace Hazardous Materials Information System (WHMIS) pictograms. Our primary points of discussion will include how to interpret the symbols as well as how to handle, store, and dispose of materials containing certain symbols.
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Other chapters within the Alberta Education Diploma - Chemistry 30: Exam Prep & Study Guide course
- Kinetic Energy & Heat Transfer
- Enthalpy in Chemistry
- Energy Changes in Biochemical Reactions
- Electrochemistry Basics
- Mixtures & Solutions in Chemistry
- Inorganic & Organic Chemistry
- Comparing Compounds in Chemistry
- Monomers & Polymers
- Organic Reactions & Greenhouse Gases
- Reduction-Oxidation Reactions
- Chemical Equilibrium Overview
- Acids & Bases in Chemistry
- Alberta Education Diploma - Chemistry 30 Flashcards