About This Chapter
Analyzing and Interpreting Scientific Data - Chapter Summary
To improve your understanding of how scientific data is analyzed, this chapter has been composed of a series of lessons about scientific measurements, formats of scientific presentations, reliability, validity, and logical conclusion-making. When you've reviewed these lessons, you should possess a better understanding of:
- The concept of errors in scientific measures and the nature of scientific uncertainty
- Units and conversions of measurements of the metric system
- Printed and electronic sources of data
- The importance of assessing the accuracy, reliability and validity of sources
- Uses of logic to draw meaningful and accurate conclusions from scientific data
- Oral and written ways of presenting scientific data
- How to construct and read graphs and charts
- Three rules you can use to solve problems using graphs and charts
In addition to these lessons, this chapter includes transcripts and quizzes. Use the transcripts to reinforce your retention of the material presented in the lessons. Complete the quizzes to identify topics you don't understand. After completing the chapter, take the practice chapter exam to test your overall understanding of the things you'll need to keep in mind when analyzing and interpreting scientific data.
1. Measurements & Uncertainty in Science
In this lesson, you will discover the importance of precision and accuracy in science while learning to make measurements. Also, you will understand how to perform calculations with measurements that conserve precision and limit uncertainty.
2. The Metric System: Units and Conversion
Just like you and your friend communicate using the same language, scientists all over the world need to use the same language when reporting the measurements they make. This language is called the metric system. In this lesson we will cover the metric units for length, mass, volume, density and temperature, and also discuss how to convert among them.
3. Unit Conversion and Dimensional Analysis
How is solving a chemistry problem like playing dominoes? Watch this lesson to find out how you can use your domino skills to solve almost any chemistry problem.
4. How to Read Scientific Graphs & Charts
How do scientists summarize their findings with visual aids? In this lesson, explore the different types of tables, charts and graphs that scientists use. Learn to read these effectively as a preview to your science studies.
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.
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.
7. 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.
8. Presenting the Scientific Process Orally or in Writing
Part of being a good scientist involves sharing your work with others. Two of the most common ways this is done is through written works and oral presentations, both of which require a certain amount of care and skill.
9. How to Construct Graphs from Data
This video describes how to create a line graph and explains the four main parts that graphs need to contain: 1. previously collected data, 2. picture representations, 3. use of the correct graph type, and 4. labels. This lesson also covers dependent and independent variables.
10. Interpreting Tables of Scientific Data: Practice Problems
Complex table problems getting you down? Multi-question, situational problems don't have to be a drag on your testing performance. Learn how to apply three simple rules as we walk through two table problems together.
11. 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.
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