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G7 Exercise Unit 8

Total questions: 35

Worksheet time: 1hrs 8mins

Name
Class
Date
1.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
2.

Melting involves the change of_________

a)

Solid to gas

b)

Liquid to solid

c)

Gas to solid

d)

Solid to Liquid

3.
Which state of matter has a definite shape?
a)
solid
b)
liquid
c)
gas
4.

What is happening when my ice cream changes from a solid to a liquid?

a)

freezing

b)

melting

c)

burning

5.

Particles of a liquid

a)

are tightly packed together and stay in a fixed position.

b)

are free to move around one another but still touch.

6.

What is condensation?

a)

gas to solid

b)

gas to liquid

c)

liquid to solid

7.

The slower the particles in a substance move,

a)

the colder it is.

b)

the warmer it is.

c)

the more energy it has.

8.

Has a definite volume but not a definite shape

a)

Solid

b)

Liquid

c)

Gas

9.
What are the states of matter?
a)
solid, liquid, and juice
b)
solid and liquid
c)
solid and gas
d)
solid, liquid, and gas
10.
Milk takes the shape of its container because it is a:
a)
solid
b)
liquid
c)
gas
11.
How is a gas defined?
a)
no shape, no volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, no shape
12.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
13.
Molecules are closest together in a 
a)
Solid
b)
Liquid
c)
Gas
d)
plasma
14.
Define a liquid
a)
no shape, no volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, no shape
15.
On a hot summer day chocolate candy can melt in your pocket.  How can you get the chocolate to return to a solid?
a)
add heat
b)
leave it in your pocket
c)
cool it in the refrigerator
d)
leave it outside
16.
Particles in this state of matter are moving the fastest.
a)
solid
b)
liquid
c)
gas
17.

What happens when the speed of particles decreases?

a)

Their temperature decreases

b)

Their temperature increases

c)

Their mass decreases

d)

Their mass increases

18.

The amount of space something takes up is its...

a)

Mass

b)

Volume

c)

Thermal Energy

d)

Temperature

19.

How many total hydrogen atoms are found in H2O?

a)

5

b)

4

c)

2

d)

0

20.
What is an example of sublimation?
a)
Ice cream melting
b)
Dry ice
21.
Sublimation is
a)
when solid turns into gas
b)
when gas turns into plasma
c)
when liquid turns into gas
d)
when gas turns into solid
22.
What is the definition of sublimation?
a)
a chemical process where a solid turns into a gas without going through a liquid stage
b)
the process of a liquid changing into a gas
23.
What is evaporization?
a)
a gas becoming a liquid
b)
a liquid becoming a solid
c)
a gas becoming a solid
d)
a liquid becoming a gas
24.
On which kind of day would you expect the most evaporation from the surface of a  pond?
a)
sunny and hot
b)
sunny and cold
c)
rainy and hot
d)
rainy and cold
25.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
26.
What is the phase change of a solid to a liquid?
a)
freezing
b)
melting
c)
boiling
d)
condensation
27.

The moon is an energy source necessary for evaporation to occur

a)

True

b)

False

28.

What happens to the speed and spacing of the particles in the dry ice during sublimation?

a)

Faster, closer together

b)

Faster, farther apart

c)

Slower, closer together

d)

Slower, farther apart

29.

Which phase changes GAIN energy as they happen?


SELECT ALL THAT APPLY

a)

Condensation

b)

Evaporation

c)

Freezing

d)

Melting

e)

Sublimation

30.

solute + solvent =

a)

solution

b)

equation

31.
a)

solvent

b)

solute

32.
a)

solvent

b)

solute

33.

Solutes dissolve quicker in _________ water.

a)

cold

b)

warm

34.

Solutes dissolve quicker if you stir them.

a)

true

b)

false

35.
Solubility is defined as
a)
the ability to catch on fire
b)
the ability to be dissolved
c)
the ability to fly.
d)
the ability to get on Mrs. D's nerves.