# Ch 9: Investigation & Experimentation in Physical Science

Watch video lessons and learn about the steps involved in using the scientific method, including how to assess and evaluate the results. These easy-to-follow lessons are just a portion of our online study guide and video collection.

## Investigation and Experimentation in Physical Science - Chapter Summary and Learning Objectives

In this lesson, you'll learn how the scientific method is used to construct and test an assumption or theory. At the beginning of the lesson, your instructor will take you through the different steps involved in the process and show you how scientists form a hypothesis or question, conduct an experiment and evaluate the results to see if the hypothesis has been confirmed or disproved. You'll also learn how scientists document their conclusions so that their peers can replicate and review their findings.

An important part of the chapter will cover the use of charts and graphs in scientific research, and you'll even find out how to create one of your own! Your instructor will also explain the difference between linear and nonlinear information on a graph, and discuss the practical use of mathematical and scientific formulas. When you've finished reviewing the videos and taking the online tests, you should be able to:

• Understand how to conduct a formal scientific investigation
• Evaluate the results of a scientific test for reliability and reproducibility
• Construct and interpret scientific graphs
• Use basic mathematical principles to solve science problems

VideoObjective
The Scientific Method: Steps, Terms and ExamplesUsing appropriate terms, outline the steps used in the scientific method. Provide examples.
Experimental Design in Science: Definition and MethodDefine and outline the procedures used in experimental design.
Evaluating Data from a Scientific InvestigationDetermine the accuracy and reproducibility of data.
Variables and Controls in a Scientific InvestigationDifferentiate between variable and controlled parameters in a test.
How to Read Scientific Graphs and ChartsExplain how to interpret scientific graphs and charts.
How to Construct Graphs from Data Construct graphs from data, and develop quantitative statements that describe the relationship between variables.
Linear and Nonlinear Relationships in Data Distinguish between linear and nonlinear relationships on a graph of data.
Applying Mathematical Relationships in Science When giving the two remaining terms, use simple mathematical relationships to determine a missing quantity (including speed, density, force, and volume formulas).

9 Lessons in Chapter 9: Investigation & Experimentation in Physical Science
Test your knowledge with a 30-question chapter practice test
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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