1. Science 8--Nature of Science—Scientific Problem Solving
Section 3 Vocabulary
Case Study

2. contains the same factors as the experimental group, but the independent variable is not changed

3. control group
contains the same factors as the experimental group, but the independent variable is not changed

4. a scientific investigation that tests how one factor affects another

5. controlled experiment
a scientific investigation that tests how one factor affects another

6. any factor that can have more than one value

7. variable
any factor that can have more than one value

8. the factor that you want to test

9. independent variable
the factor that you want to test

10. a process of critical thinking that uses observations and experiments to investigate testable predictions about the physical universe

11. scientific method
a process of critical thinking that uses observations and experiments to investigate testable predictions about the physical universe

12. uses words to describe what is observed

13. qualitative data
uses words to describe what is observed

14. used to study how a change in the independent variable changes the dependent variable

15. experimental group
used to study how a change in the independent variable changes the dependent variable

16. uses numbers to describe what is observed

17. quantitative data
uses numbers to describe what is observed

18. the factors in an experiment that do not change

19. constants
the factors in an experiment that do not change

20. the factor you observe or measure during an experiment

21. dependent variable
the factor you observe or measure during an experiment