Unit 1 Test Review

1. Scientists use observations and data to form and test

a. Constantsb. Hypothesesc. Theoriesd. Conclusions

Answer = B. Hypothesis

2. During an experiment, which factors are observed and measured?

a. dependent variablesb. independent variablesc. constantsd. hypotheses

Answer = A. dependent variables

3. The work of scientists begins witha. testing a hypothesisb. asking a questionc. creating experimentsd. drawing conclusions

Answer = B. Asking a question

4. In science, a hypothesis is useful only if a. it predicts an outcomeb. it can be testedc. both a and bd. none of the above

Answer = C. both a and b

5. This country standardized the measurement system

a. Englandb. USAc. Franced. Germany

Answer = C. France

6. The name of the standardized measurement system is

a. SIb. Metricc. bot A and Bd 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. densityb. masc. volumed. weight

Answer = B. Mass

10. The amount of space that an object takes up is a. massb. densityc. volumed. weight

Answer = C. Volume

11. Calculate the density of a object with a mass of 10 and a volume of 2.

a. 5b. 0.2c. 20d. 8

Answer = A. 5

12. Water displacement is a technique used to find what?

a. Volume of a solidb. volume of an irregularly shaped ojectc. mass of a solidd. 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. scatter plotb. bar graphc. pie chartd. line graph

Answer = D. line graph

14. This type of graph shows percentages of parts of a whole

a. bar graphb. pie chartc. scatter plotd. line graph

Answer = B. pie chart

15. What is the base unit of densitya. gramsb. metersc. g/mLd. 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. Massb. Lengthc. Weightd. 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:

a. Kilogramb. Meterc. hLd. Mme. Cmf. Gramg. Millisecond

a. Kgb. Mc. Hectoliterd. Millimetere. Centimeterf. Gg. Ms