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OSM Unit 1 Review

Total questions: 45

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

I will perform only those activities that have been assigned by the instructor.

a)

True

b)

False

2.

I will immediately notify the instructor only about major accidents.

a)

True

b)

False

3.

Horseplay, jokes, and pranks is ok in the science classroom at any time.

a)

True

b)

False

4.

What two words should be in your hypothesis?

a)

I think

b)

If ...then...

c)

It will

d)

No idea

5.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
6.
A(n) _____________ variable depends on or is changed by another variable.
a)
dependent
b)
independent
7.
The part of the experiment that remains the same for the control and experimental group.
a)
constants
b)
control
c)
independent
d)
dependent
8.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
hypothesis
9.

What is the first step of scientific method?

a)

MAKE OBSERVATIONS

b)

DRAW CONCLUSION

10.

HYPOTHESIS MEAN ______

a)

RIGHT ANSWER

b)

GUESS

11.

AFTER MAKING OBSERVATION, YOU WILL ASK _________

a)

QUESTIONS

b)

ANSWERS

12.

AFTER ASKING QUESTION , YOU WILL FORM ____________

a)

ANSWER

b)

HYPOTHESIS

13.

AFTER MAKING HYPOTHESIS , YOU NEED TO PERFORM ______________ TO PROVE YOURSELF RIGHT

a)

READING

b)

EXPERIMENT

14.

WHAT IS THE LAST STEPS OF SCIENTIFIC METHOD?

a)

MAKE OBSERVATIONS

b)

DRAW CONCLUSION

15.

What is the length of the screw in centimeters (cm)?

a)

5 cm

b)

6 cm

c)

5 mm

d)

6 m

16.
What are the three base units?
a)
mass,length,grams
b)
meters,length,grams
c)
measuring,liters,games
d)
meters,liters,grams
17.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
type of sun flower
18.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
Type of sunflower
19.

What is the volume of the ring? (new volume - old volume)

a)

64 mL

b)

68 mL

c)

8 mL

d)

4 mL

20.
Find the Volume
a)
428.4 cm3
b)
412.8 cm3
c)
404.2 cm3
d)
400 cm3
21.

#11 Show all your work on your answer document. D=m/v

a)

0.055 g/cm3

b)

0.06 g/cm3

c)

18 g/cm3

d)

180 g/cm3

22.

#15 Show all your work on your answer document. m=D⋅V

a)

0.25 g

b)

3 g

c)

4 g

d)

5 g

23.

What is the mass on the triple beam balance?

a)

321 g

b)

123 g

c)

120.3 g

d)

231 g

24.
7,000 g = ____ kg
a)
70
b)
700
c)
7
d)
0.07
25.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

26.

Select the largest unit.

a)

milliliter

b)

centiliter

c)

deciliter

d)

decaliter

27.
Convert 8 kilometers to meters
a)
800 m
b)
80,000 m
c)
8,000 m
d)
.008 m
28.
42 L = ___mL
a)
4,200
b)
.0042
c)
4.20
d)
42,000
29.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
30.
Which liquid is the most dense?  
a)
oil
b)
water
c)
syrup
d)
plastic bottle
31.
A can of Coke will sink in a bowl of water.  A can of Diet Coke will float in a bowl of water.  What does this tell you about the density of the Diet Coke?
a)
it is bigger than 1
b)
it is smaller than 1
c)
it is equal to 1
d)
it is equal to -1
32.
An object with which of the following densities will float on water?
a)
0.7 g/cm3
b)
1.2 g/cm3
c)
3.5 g/cm3
d)
11.4 g/cm3
33.
What is 9.2 x 104 in standard notation?
a)
9,200
b)
92,000
c)
920,000
d)
920
34.
What is 416,000,000 in scientific notation?
a)
4.16 x 108
b)
4.16 x 109
c)
4.16 x 10-8
d)
4.16 x 10-9
35.
Express the following in scientific notation:
.000457
a)
457 x 106
b)
457 x 10-6
c)
4.57 x104
d)
4.57 x 10-4
36.
The leaf is 5mm wide.
a)
Qualitative
b)
Quantitative
37.
It feels smooth.
a)
Qualitative 
b)
Quantitative
38.
It tastes sweet.
a)
Qualitative
b)
Quantitative
39.
The mass of the chocolate cake is 250 g.
a)
Qualitative
b)
Quantitative
40.

Using your senses to gather information is called an _____?

a)

observation

b)

inference

c)

question

41.

Explaining or interpreting the observations is called _____?

a)

observation

b)

inference

c)

question

42.
The girl is folding her arms.
a)
Observation
b)
Inference
43.
There are 5 boys.
a)
Observation
b)
Inference
44.

Which of the following has the metric prefixes in the right order from LARGEST to SMALLEST?

a)

k,h,d,base, da,c,m

b)

m,c,da,base,da,h,k

c)

m,c,d,base,da,h,k

d)

k,h,da,base,d,c,m

45.

What are the two units used when measuring volume?

a)

cm3 and mL

b)

cm3 and mm

c)

cm and g

d)

mL and cm

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