Ch 1: Developing a Scientific Investigation

About This Chapter

Developing a scientific investigation takes a lot of planning and consideration, and this chapter addresses several subjects relating to this topic. You might review this type of information when preparing for science class exams or discussions or for college entrance or certification exams.

Developing a Scientific Investigation - Chapter Summary

This chapter is designed to help you review terms and practices relating to scientific investigations. You'll study information about hypotheses, variables, research sources, accuracy, reliability and experimental design methods. After completing your study of this chapter, you should have developed or strengthened your ability to:

  • Detail the steps involved in scientific investigations
  • Explain how to develop a hypothesis
  • Identify independent, dependent and control variables
  • Describe how to design a scientific investigation
  • Discuss the uses, benefits and drawbacks of online and printed scientific sources
  • Relate how to assure the accuracy, reliability and validity of scientific sources
  • Understand how to make measurements and calculations with precision and accuracy
  • Note types of unavoidable experimental data error

The video lessons are accessible 24/7 on any device and only take about 5-10 minutes to review. You can print out the video transcripts to use as handy reference tools. Monitor your progress through this chapter on your Dashboard, and assure your understanding of the material by taking self-assessment quizzes for each lesson.

7 Lessons in Chapter 1: Developing a Scientific Investigation
Test your knowledge with a 30-question chapter practice test
What is Scientific Investigation? - Definition, Steps & Examples

1. What is Scientific Investigation? - Definition, Steps & Examples

Scientific investigation is the way in which scientists and researchers use a systematic approach to answer questions about the world around us. Read on to find out more. A quiz is provided to test your understanding.

What is a Hypothesis? - Definition & Explanation

2. What is a Hypothesis? - Definition & Explanation

A hypothesis is an educated prediction that can be tested. You will discover the purpose of a hypothesis then learn how one is developed and written. Examples are provided to aid your understanding, and there is a quiz to test your knowledge.

Identifying & Interpreting Independent & Dependent Variables

3. Identifying & Interpreting Independent & Dependent Variables

Scientists answer questions by performing experiments that have an independent variable, a dependent variable and at least one control variable. By controlling, adjusting and measuring these variables, scientists find answers to their questions.

Experimental Design in Science: Definition & Method

4. 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.

Print & Electronic Sources for Scientific Research

5. Print & Electronic Sources for Scientific Research

Sources provide you with helpful background information that support your own work. You can find sources both online and in printed materials. There are benefits and drawbacks to each, so you'll need to consider which is best for you and your project.

Scientific Sources: Accuracy, Reliability & Validity

6. Scientific Sources: Accuracy, Reliability & Validity

It's important to use other sources to support your work, but what's even more important is to use the right ones. Sources should be valid, reliable, and accurate, but it's not always easy to tell which ones meet these criteria.

Identifying Sources of Unavoidable Experimental Error

7. Identifying Sources of Unavoidable Experimental Error

Good data are essential for any experiment. But no matter how hard you try, error in your data is unavoidable. In this lesson, you'll learn about the types of unavoidable experimental error to be on the lookout for and how to reduce their occurrence in your data.

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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