Ch 3: Scientific Reasoning & Logic

About This Chapter

Refresh your memory on scientific reasoning and logic with this helpful chapter. Use the lessons to get higher scores in class or to prepare for exam questions about scientific principles, experimental design, data collection, and related info.

Scientific Reasoning & Logic - Chapter Summary

In this chapter, bring back everything you have gone over in class about scientific reasoning and logic. These lessons walk you through the different topics, prompting you to recall important keywords, definitions, experimental design features, and more. When you reach the end of the chapter, you should know how to do the following:

  • Describe how the branches of science are unified through various principles
  • Identify possible hypotheses for different experiments
  • Determine if experimental designs connect to hypotheses
  • Check out experimental data to determine logical conclusions
  • Define the scientific method and all included steps
  • Examine if conclusions are supported by available evidence

If you need a fast recap about scientific reasoning and logic, check out the lessons included in this chapter. Many of these lessons are in video format, allowing you to see and hear the information directly from our instructors. These lessons let you set the pace, as you can pause them at any time and re-watch them. Complete written transcripts of the video lessons are available underneath each video. You can also view all the lessons in any order you see fit, or just focus on the topics you need to work on.

6 Lessons in Chapter 3: Scientific Reasoning & Logic
Test your knowledge with a 30-question chapter practice test
Principles Unifying the Branches of Science

1. Principles Unifying the Branches of Science

Scientists of different disciplines look to compete with one another. But they have more in common than you might think. Learn about the basic principles that all scientists share, and why they're important.

Identifying Potential Hypotheses from a Given Experiment

2. Identifying Potential Hypotheses from a Given Experiment

Experimental designs are dependent on good hypotheses. But we can also look at it the other way and identify a hypothesis from an experiment. In this lesson, we'll work through this process, showing you how to dissect an experiment to identify what is being tested.

Understanding Whether Experimental Designs Match Hypotheses

3. Understanding Whether Experimental Designs Match Hypotheses

Hypotheses and experimental design are two peas in a pod. How you write your hypothesis will greatly influence how you design your experiment. In this lesson, learn about the types of experiments you may run and how you can match your hypothesis to the appropriate one.

Drawing Logical Conclusions from Experimental Data

4. Drawing Logical Conclusions from Experimental Data

Experimental results are what scientists like to share with each other, but it's important to understand what those data mean. We do this in the final step of the experimental process, when we draw meaningful conclusions from the results we obtained.

Connecting the Steps of the Scientific Method

5. Connecting the Steps of the Scientific Method

While the scientific method is divided into different steps, each of those steps is connected to the others. From making observations to drawing conclusions, the logical order and flow is what makes this process work so well in science.

Understanding Whether Given Evidence Supports a Conclusion

6. Understanding Whether Given Evidence Supports a Conclusion

Part of being a good scientist is evaluating other scientists' work. One aspect of this is knowing whether the evidence provided supports the scientists' conclusions. While this is not always easy, it is necessary in order to produce good science.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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