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NOS - Variables, Measurement & Density

Total questions: 48

Worksheet time: 40mins

Name
Class
Date
1.

The density of a 100-g sample of lead is approximately 11 grams per cubic centimeter. If the sample is cut into two 50-g pieces, what is the density of each half?

a)

11 g/cm³

b)

5.5 g/cm³

c)

1.1 g/cm³

d)

0.5 g/cm³

2.

The mass and dimensions of a rectangular solid are shown below. What is the density of this object?

a)

0.25 g/cm³

b)

0.5 g/cm³

c)

25 g/cm³

d)

50 g/cm³

3.

How do you know that ice is less dense than water?

a)

Ice is a solid

b)

Ice is transparent

c)

Ice is usually light in color

d)

Ice floats in water

4.

A marble has a mass of 50 grams and a volume of 5mL. What is the density of the marble?

a)

50.0 g/cm³

b)

10.0 g/cm³

c)

5.0 g/cm³

d)

250.0 g/cm³

5.

In which phase (state) do most earth materials have their greatest density?

a)

solid

b)

liquid

c)

gas

6.

Compared to the density of water, the density of ice is

a)

less

b)

greater

c)

the same

7.

A box of tissues has a volume of 40cm³ and a mass of 20 grams. What is the density of the box of tissues?

a)

0.5 g/cm³

b)

2.0 g/cm³

c)

20.0 g/cm³

d)

800.0 g/cm³

8.

If all of the substances were melted and a new substance was added which had a density of 11 g/ml, it would probably be found floating between:

a)

Lead and Mercury

b)

Steel and Silver

c)

Aluminum and Steel

d)

Silver and Lead

9.

Which material has the greatest density?

a)

A

b)

B

c)

C

d)

D

e)

E

10.

The original block of material A is cut into several pieces. When compared with the density of the original block, the density of each piece will be

a)

less

b)

greater

c)

the same

11.

True or false: The density of a specific type of material does not change

a)

True

b)

False

12.

Bob has a paperclip. It has a mass of 9 g and a volume of 3cm3. What is its density?

a)

3 g/cm3

b)

.33 g/cm3

c)

27 g/cm3

d)

39 g/cm3

13.

Bob has an eraser. It has a volume of 2 cm3 and a mass of 4 g. What is its density?

a)

8 g/cm3

b)

2 g/cm3

c)

0.5 g/cm3

d)

24 g/cm3

14.

An object with which of the following densities will float on water?

a)

11.4 g/cm3

b)

3.5 g/cm3

c)

1.2 g/cm3

d)

0.7 g/cm3

15.

A student measured 3 objects made of different materials. The table shows each objects mass and volume. Which of the following lists the materials in order from least dense to most dense?

a)

glass ⟶\longrightarrow wood ⟶\longrightarrow rubber

b)

glass \longrightarrow rubber \longrightarrow wood

c)

rubber \longrightarrow glass \longrightarrow wood

d)

wood \longrightarrow rubber \longrightarrow glass

16.

What would happen to the density of each piece if you were to cut the cylinder below in half?

a)

the density would decrease

b)

the density would increase

c)

the density would remain the same

17.
The height of bean plants depends on the amount of water they receive. The independent variable is..... 
a)
The height of bean plants
b)
the amount of water
18.
The higher the temperature of water, the faster an egg will boil. The dependent variable is.....
a)
The temperature of water
b)
Amount of time it takes egg to boil
19.
The number of nails picked up by an electro-magnet increases with the number of batteries hooked to the circuit. What is the independent variable?
a)
Number of batteries
b)
Number of nails picked up.
20.
True or false. The independent variable is graphed on the x axis, and the dependent variable is graphed on the y axis.
a)
True
b)
False
21.
Keeping the lights on different amounts of time affect the number of eggs a chicken lays. The dependent variable is....
a)
Number of eggs a chicken lay
b)
Amount of time the lights are kept on.
22.
The independent variable is the ONE thing you _____ to test your hypothesis.
a)
change
b)
keep the same
c)
experiment with
d)
investigate
23.
The variable that is measured throughout the experiment is the ________________
Hint: It may change as a result of your testing.
a)

Constant

b)
Responsive Variable
c)
Dependent Variable
d)
Independent Variable
24.
Catherine is testing which soil will help grass grow the tallest.  The height of the grown grass is the __ variable.
a)
constant (stays the same)
b)
independent (it's what you change)
c)
dependent (it's what you measure)
25.
What would the INDEPENDENT variable be in an experiment testing which  paper airplane design goes furthest?
a)
the paper used
b)
the paper airplane design
c)
the distance of each plane's flight
d)
how hard the plane is thrown
26.
When experimenting with plants to see if they grow better with or without fertilizer, a scientist uses six bean plants and one type of fertilizer. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)

Constant

d)
Compound
27.
Mrs. Ahlers set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Where the experiment took place.
28.
Jonathan set up the same experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Who set up the experiment (Jonathan etc)
29.
Daniel was investigating how fast it took mice to react to different sounds. Identify the independent variable.
a)
How fast mice reacted
b)
different sounds
c)
types of music
d)
Daniel
30.
Students took a test after they had studied either in silence or with the television turned on. What is the dependent variable?
a)
silence
b)
television turned on
c)
score on test
d)
subject 
31.

A comprehension test was given to students after they had studied textbook material either in silence or working together.
What is a possible control group?

a)
Comprehension Test Results
b)
The thickness of the text book
c)
All students working in Silence
d)
Number of students working together and in Silence
32.
If a student thinks an apple a day keeps the doctor away what are some constants they need to consider?
a)
the number of apples eaten by test subject, who eats them, amount of sleep testing subjects recieve
b)
the apples
c)
the number of doctors visits
d)
the age of the test subjects, the general sleep and meals eaten by test subjects
33.
What are all the things that are kept the same in an experiment?
a)
controls
b)
data
c)
constants
d)
independent variables
34.

Which of the following is more precice

a)

Left Graduated Cylinder

b)

Middle Graduated Cylinder

c)

Beaker on the right

35.

Which of the following has a smaller density?

a)

a

b)

b

36.

Which of the following has a greater density?

a)

a

b)

b

37.

Convert 74 km to m

a)

0.074 m

b)

740 m

c)

74000 m

38.

Convert 345 ml in to L

a)

  1. 0.345 L

b)

34.5 L

c)

3450 L

39.

Convert 987 mm to cm

a)

9870 cm

b)

0.978 cm

c)

98.7 cm

40.

Metric unit for volume?

a)

g

b)

mm

c)

mL

d)

N

41.

Metric unit for mass?

a)

g

b)

mm

c)

mL

d)

N

42.

Metric unit for density?

a)

g

b)

g/ml

c)

ml/g

d)

g/cm

43.

Which tool would you use for measuring mass?

a)

graduated cylinder

b)

ruler

c)

electronic scale

d)

thermometer

44.

Which tool would you use for measuring liquid volume?

a)

graduated cylinder

b)

ruler

c)

electronic scale

d)

thermometer

45.

Which tool would you use for measuring temperature?

a)

graduated cylinder

b)

ruler

c)

electronic scale

d)

thermometer

46.

Which tool would you use for measuring length?

a)

graduated cylinder

b)

ruler

c)

electronic scale

d)

thermometer

47.

What is the volume of the battery?

a)

5 ml

b)

10 ml

c)

17 ml

d)

22 ml

48.

How do you know a lego is less dense than water?

a)

it's less dense than water

b)

it's usually light

c)

legos float in water

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