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Solids, Liquids and Gases Unit

Total questions: 45

Worksheet time: 2hrs 24mins

Name
Class
Date
1.

What is Freezing?

a)

Solid turning into a Liquid

b)

Liquid turning into a Solid

c)

Gas turning into a Liquid

d)

Liquid turning into a Gas

2.

Which of these will flow and fill up any shape of container?

a)

solid

b)

liquid

c)

gas

d)

cats

3.

What is a solid?

a)

particles that are tightly compacted

b)

particles that are not tightly compacted

4.

what is a liquid?

a)

a substance that flows freely but is of constant volume

b)

a substance or matter in a state in which it will expand freely

c)

firm and stable in shape

5.

what is a gas?

a)

a substance or matter in a state in which it will expand freely to fill the whole of a container

b)

the basic unit of a chemical element

c)

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

6.

I am a state of matter: my molecules are very close together and hardly move. I am ____________.

a)

Solid

b)

Liquid

c)

Gas

d)

Oblek

7.

I am a state of matter: my molecules are jumping all over the place. I must be a _________.

a)

Solid

b)

Liquid

c)

Gas

d)

Oblek

8.

I am a state of matter: my molecules move past each other easily, but they are pretty close together.

a)

I am a solid

b)

I am a Liquid

c)

I am a gas

9.
Which of these is NOT a gas.
a)
Air
b)
The sea
c)
Carbon dioxide
10.
You blow up a balloon. Is it heavier or lighter than the uninflated balloon?
a)
Heavier
b)
Lighter
c)
The same
11.

A substance changing from a gas to a liquid is an example of...

a)

vaporization

b)

condensation

c)

precipitation

d)

melting

12.

A substance that has a temperature below its melting point would be in . . .

a)

a gaseous state of matter

b)

a liquid state of matter

c)

a solid state of matter

d)

a plasma state of matter

13.

When water molecules slow down and move closer together ...

a)

the water separates into hydrogen and oxygen.

b)

the water turns into liquid nitrogen.

c)

the water turns into water vapor.

d)

the water turns into ice.

14.

The molecules of a substance slow down when . . .

a)

energy is added.

b)

energy is taken away.

15.

The temperature at which a liquid turns into a solid is its . . .

a)

melting point

b)

boiling point

c)

condensation point

d)

freezing point

16.

Examine the image. Which arrow shows the process of condensation?

a)

arrow A

b)

arrow B

c)

arrow C

d)

arrow D

e)

none of the arrow choices

17.
a)

freezing

b)

evaporation

c)

condensation

d)

melting

18.

Examine the image and select the best choice.

a)

Molecular energy was increased and the substance evaporated.

b)

Molecular energy was lost and the substance froze.

c)

Molecular energy was lost and the substance boiled.

d)

Molecular energy was increased and the substance melted.

19.

What causes can cause matter particles to speed up or slow down?

a)

temperature & pressure

b)

time & pressure

c)

time & heat

20.

In which 3 changes in states of matter do the particles slow down?

a)

condensation

b)

freezing

c)

sublimation

d)

melting

e)

deposition

21.

Which of the following phase changes occurs when matter changes from vapor to liquid?

a)

deposition

b)

condensation

c)

sublimation

d)

melting

22.

Which of the following phase changes occurs when matter changes from a solid directly to vapor?

a)

melting

b)

freezing

c)

condensation

d)

sublimation

23.

In which 3 changes in states of matter do the particles speed up?

a)

melting

b)

condensation

c)

evaporation

d)

freezing

e)

sublimation

24.

The gas around the glass of Dr. Pepper turning into liquid was an example of ________________.

a)

sublimation

b)

condensation

c)

evaporation

d)

melting

25.

As solid (ice) turned into liquid (water) in my glass of Dr. Pepper this was an example of _____________.

a)

freezing

b)

condensation

c)

melting

d)

evaporation

26.

Which phase change occurs when matter changes from a solid to a liquid?

a)

freezing

b)

sublimation

c)

melting

d)

evaporation

27.

Which phase change occurs when matter changes from liquid to solid?

a)

freezing

b)

melting

c)

condensation

d)

evaporation

28.

Which phase change occurs when a liquid turns into vapor?

a)

sublimation

b)

deposition

c)

condensation

d)

evaporation

29.

Which phase change occurs when a solid changes directly into vapor?

a)

condensation

b)

evaporation

c)

sublimation

d)

deposition

30.
Which is needed for both boiling and melting to occur?
a)
solids
b)
gases
c)
heat
d)
pressure
31.
Which of these is an example of water changing from water vapor to liquid?
a)
moisture forming on a mirror when you breathe on it
b)
sweat forming on your body when you exercise
c)
ice cubes melting when you put them in a warm liquid
d)
rivers drying up during a very hot summer
32.
The teacher heats a pot of water. Once the water reaches 100°C, which point has the water reached?
a)
Boiling
b)
Melting
c)
Freezing
d)
Evaporating
33.
Jonathan places a pot of water on a stove. As the water boils, how does the state of the water change?
a)
from gas to liquid
b)
from liquid to gas
c)
from liquid to solid
d)
from solid to liquid
34.
Molecules have energy and _________ stop moving
a)
rarely
b)
always
c)
never
d)
sometimes
35.
As molecules gain energy, they move _____ and spread apart, and vise versa.
a)
faster
b)
slower
c)
less
d)
inside
36.
Molecules are made up of ____________. 
a)
atoms
b)
mass
c)
matter
d)
molecules
37.

A natural resource is....

a)

a resource that forms much more slowly than it is consumed

b)

a natural resource that can be replaced at the same rate at which it is consumed

c)

any natural material that is used by humans

38.

a renewable resource is ....

a)

a resource that forms much more slowly than it is consumed

b)

a natural resource that can be replaced at the same rate at which it is consumed

c)

any natural material that is used by humans

39.

a nonrenewable resources is...

a)

any natural material that is used by humans

b)

a natural resource that can be replaced at the same rate at which it is consumed

c)

a resource that forms much more slowly than it is consumed

40.

Choose ALL the ways that using natural resources can be harmful...

a)

mining and oil spills can damage ecosystems

b)

they make our lives easier

c)

burning coal or other fossil fuels can cause air and water pollution

d)

used products can fill landfills or litter beaches and other natural areas

41.

The above hazard symbol means ......

a)

explosive

b)

flammable

c)

toxic or poisonous

d)

corrosive

42.

Corrosive substances such as bleaches and drain cleaners can cause ......

a)

difficult of breathing

b)

serious burns and eye damage

c)

permanent amnesia

d)

massive headache

43.

Identify the hazardous symbol

a)

explosive

b)

flammable

c)

oxidizing

d)

corrosive

44.

What safety symbol is this?

a)

biohazard

b)

radioactive

c)

toxic

d)

corrosive

45.
What safety Symbol is this?
a)
Flamable
b)
Oxidizing Agent
c)
No Open Flame
d)
Explosion

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