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Ch 1: Experimental Design & Measurement

About This Chapter

Utilize this overview of experimental design and measurement to increase your understanding of topics like science experiment controls, algorithms, and WHMIS symbols on laboratory reagents. The lessons in this chapter will help you feel better prepared to take an exam or engage in a class discussion.

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.

8 Lessons in Chapter 1: Experimental Design & Measurement
Test your knowledge with a 30-question chapter practice test
Experimental Design in Science: Definition & Method

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.

Variables & Controls in a Science Experiment

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.

Manipulated Variable: Definition & Example

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.

What is a Responding Variable? - Definition & Example

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.

What Are Significant Digits? - Definition, Rules & Examples

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.

Interpreting Graphs and Charts of Scientific Data: Practice Problems

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.

What is an Algorithm? - Definition & Examples

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.

WHMIS Symbols: Interpreting, Handling, Storing & Disposing Materials

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.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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