Unit 1 Test Review

Scientists use observations and data to form and test Constants Hypotheses Theories Conclusions Answer = B. Hypothesis

2. During an experiment, which factors are observed and measured. a 2. During an experiment, which factors are observed and measured? a. dependent variables b. independent variables c. constants d. hypotheses Answer = A. dependent variables

3. The work of scientists begins with a. testing a hypothesis b 3. The work of scientists begins with a. testing a hypothesis b. asking a question c. creating experiments d. drawing conclusions Answer = B. Asking a question

4. In science, a hypothesis is useful only if a 4. In science, a hypothesis is useful only if a. it predicts an outcome b. it can be tested c. both a and b d. none of the above Answer = C. both a and b

5. This country standardized the measurement system a. England b. USA c. France d. Germany Answer = C. France

6. The name of the standardized measurement system is a. SI b. Metric c. bot A and B d None of the above Answer = C. both A and B

7. Converst the following measurement: 15g = _________kg Answer = .015 kg

Convert the following measurement: 1.76 DL = ______________ mL Answer = 17600 mL

9. The amount of matter that makes up an object is it’s a. density b 9. The amount of matter that makes up an object is it’s a. density b. mas c. volume d. weight Answer = B. Mass

10. The amount of space that an object takes up is a. mass b. density c. volume d. weight Answer = C. Volume

11. Calculate the density of a object with a mass of 10 and a volume of 2. a. 5 b. 0.2 c. 20 d. 8 Answer = A. 5

12. Water displacement is a technique used to find what. a 12. Water displacement is a technique used to find what? a. Volume of a solid b. volume of an irregularly shaped oject c. mass of a solid d. mass of an irregularly shaped object Answer = B. Volume of an irregularly shaped object

13. One would use this type of graph to show change over time a 13. One would use this type of graph to show change over time a. scatter plot b. bar graph c. pie chart d. line graph Answer = D. line graph

14. This type of graph shows percentages of parts of a whole a 14. This type of graph shows percentages of parts of a whole a. bar graph b. pie chart c. scatter plot d. line graph Answer = B. pie chart

15. What is the base unit of density a. grams b. meters c. g/mL d. g/m3 Answer = C. g/mL

16. What is the line pointing to? a. stage adjustment knob b. diaphragm c. fine adjustment knob d. coarse adjustment knob ? Answer = C. fine adjustment knob

17. What is the line pointing to? a. eyepiece b. objective lenses c. diaphragm d. arm ? Answer = A. eyepiece

18. What is the line pointing to? a. light source b. objective lenses c. diaphragm d. stage adjustment knob ? Answer = C. diaphragm

19. What is not one of the “BIG 6” measuremtents that are part of the SI system? a. Mass b. Length c. Weight d. Time Answer = c. weight

20. What is the correct formula for writing hypothesis statements? If ____IV___ then ___DV___ because _____.

21. Write the correct abbreviations or name for each: Kilogram Meter hL Mm Cm Gram Millisecond Kg M Hectoliter Millimeter Centimeter G Ms