2. Hosted By: Ms. Flanagan

3. 100 200 400 300 400 Multiple Choice 1 Multiple Choice 2 Fill in the blank variables 300 200 400 200 100 500 100

4. Row 1, Col 1 What does a line of best fit emphasize? A.The individual data points B. the overall trend of the data C.Data points that fall along a line D. the slope of a line B. The overall trend of the data

5. 1,2 Using one or more of your senses to gather information is called A. observing B. inferring C. predicting D. classifying A. observing

6. 1,3 Density = ________ / volume mass

7. 1,4 BillyBob wanted to know if his cat would eat more kittychow or catastic brand cat food. What is the independent variable? Dependent variable? IV: food; DV: how much food eaten

8. 2,1 In science, a hypothesis must be a.Correct b. manipulated c.Controlled d.Testable

9. 2,2 Which of the following are NOT examples of data? A.Quantitative observations B. Qualitative observations C. Theories D. Measurements C. Theories

10. 2,3 Each unit in the SI system is ____ times larger than the next smallest unit. ten

11. 2,4 SarahSue wanted to know if different brands of toothpaste would make her smile brighter. What is the independent variable? Dependent variable? IV: toothpaste; DV: brightness of smile

12. 3,1 During an experiment, if you purposely change the temperature to test a hypothesis, the temperature is called the a.manipulated variable b. responding variable c. operational variable d. dependent variable a. Manipulated variable

13. 3,2 The factor that may change in response to the manipulated variable is called the _____. a.Hypothetical variable b.Responding variable c.Operational variable d.Independent variable b. Responding variable

14. 3,3 Proposing an explanation for the changing colors of the sky is an example of a(n) __________. hypothesis

15. 3,4 JudyJane wanted to know if eating more vegetables than usual would make her hair shinier. What is the independent variable? Dependent variable? IV: amount of vegetables DV: shininess of hair

16. 4,1 An organized way to collect and record scientific observations is with a(n) a.model. b. inference. c.data table. d.operational definition. c. Data table

17. 4,2 One useful tool that may help a scientist interpret data by revealing unexpected patterns is a a.Variable b.Graph c.Theory d.Law b. graph

18. 4,3 The factors that can change in an experiment are called ________. variables

19. 4,4 Ms. Flanagan wanted to know if dancing before taking test would improve her student’s test scores. What is the independent variable? Dependent variable? IV: dancing; DV: test scores

20. 5,1 A summary of what you have learned from a scientific experiment is called a(n) a.hypothesis. b.inquiry. c.conclusion. d.law. c. conclusion

21. 5,2 A line graph shows a.Changes in the responding variable only. b.Changes in the manipulated variable only. c.How the responding variable changes in response to the manipulated variable. d. How the manipulated variable changes on its own. c. How the responding variable changes in response to the manipulated variable.

22. 5,3 Density is a measure of how much mass there is in a given ________. volume

23. 5,4 Ms. O’Toole wanted to know if wearing uniforms made students follow more rules. What is the Independent variable? Dependent variable? IV: uniforms; DV: following rules