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Exploring States of Matter

Total questions: 38

Worksheet time: 30mins

Name
Class
Date
1.

Which state of matter has a definite volume but no definite shape?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

2.

Compare the molecular arrangement of solids and gases. Which statement is true?

a)

Molecules in solids are more spread out than in gases.

b)

Molecules in gases are tightly packed.

c)

Molecules in solids are tightly packed, while in gases they are far apart.

d)

Molecules in both solids and gases are arranged randomly.

3.

Explain why ice melts into water when heated.

a)

The molecules in ice gain energy and move closer together.

b)

The molecules in ice lose energy and move apart.

c)

The molecules in ice gain energy and move apart, breaking the rigid structure.

d)

The molecules in ice lose energy and form a rigid structure.

4.

Analyze the behavior of water molecules as it transitions from liquid to gas.

a)

Molecules lose energy and move closer together.

b)

Molecules gain energy and move further apart.

c)

Molecules lose energy and form a rigid structure.

d)

Molecules gain energy and move closer together.

5.

Which phase change involves a substance going directly from a solid to a gas?

a)

Melting

b)

Freezing

c)

Sublimation

d)

Condensation

6.

Apply your understanding of states of matter to explain why a balloon expands when heated.

a)

The air molecules inside the balloon lose energy and move closer together.

b)

The air molecules inside the balloon gain energy and move further apart.

c)

The air molecules inside the balloon lose energy and form a rigid structure.

d)

The air molecules inside the balloon gain energy and move closer together.

7.

Identify the state of matter that is characterized by having a fixed shape and volume.

a)

Liquid

b)

Gas

c)

Solid

d)

Plasma

8.

Compare the compressibility of gases and liquids. Which statement is true?

a)

Gases are less compressible than liquids.

b)

Liquids are more compressible than gases.

c)

Gases are more compressible than liquids.

d)

Both gases and liquids are equally compressible.

9.

Explain the process of condensation in terms of molecular behavior.

a)

Molecules gain energy and move further apart.

b)

Molecules lose energy and move closer together.

c)

Molecules gain energy and form a rigid structure.

d)

Molecules lose energy and move further apart.

10.

Analyze why a solid changes to a liquid at its melting point.

a)

The molecules lose energy and form a rigid structure.

b)

The molecules gain energy and move closer together.

c)

The molecules gain energy and move apart, overcoming the forces holding them in place.

d)

The molecules lose energy and move apart.

11.

Which state of matter is most affected by changes in pressure?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

12.

Compare the energy levels of particles in solids and liquids. Which statement is true?

a)

Particles in solids have more energy than in liquids.

b)

Particles in liquids have more energy than in solids.

c)

Particles in solids and liquids have the same energy.

d)

Particles in liquids have less energy than in solids.

13.

Explain why steam burns are more severe than burns from boiling water.

a)

Steam has less energy than boiling water.

b)

Steam has more energy than boiling water.

c)

Steam and boiling water have the same energy.

d)

Steam has less energy and moves slower than boiling water.

14.

Analyze the effect of temperature on the viscosity of a liquid.

a)

As temperature increases, viscosity increases.

b)

As temperature decreases, viscosity decreases.

c)

As temperature increases, viscosity decreases.

d)

Temperature has no effect on viscosity.

15.

Apply your knowledge of phase changes to explain why frost forms on a cold surface.

a)

Water vapor gains energy and becomes a liquid.

b)

Water vapor loses energy and becomes a solid.

c)

Water vapor gains energy and becomes a solid.

d)

Water vapor loses energy and becomes a liquid.

16.

Identify the phase change that occurs when a gas turns into a liquid.

a)

Melting

b)

Freezing

c)

Condensation

d)

Sublimation

17.

Compare the density of solids and gases. Which statement is true?

a)

Solids are generally less dense than gases.

b)

Gases are generally more dense than solids.

c)

Solids are generally more dense than gases.

d)

Solids and gases have the same density.

18.

Explain why liquids take the shape of their container but do not expand to fill it completely.

a)

Liquid molecules are tightly packed and cannot move.

b)

Liquid molecules are loosely packed and can move past each other but are still attracted to each other.

c)

Liquid molecules are tightly packed and can move past each other.

d)

Liquid molecules are loosely packed and cannot move.

19.

Analyze the behavior of gas molecules when a gas is compressed.

a)

Molecules gain energy and move further apart.

b)

Molecules lose energy and move closer together.

c)

Molecules gain energy and move closer together.

d)

Molecules lose energy and move further apart.

20.

Apply your understanding of states of matter to explain why ice floats on water.

a)

Ice is denser than water.

b)

Ice is less dense than water.

c)

Ice and water have the same density.

d)

Ice is more compressible than water.

21.
As particles are exposed to warmer temperatures they __________
a)
speed up
b)
slow down
c)
stay the same
d)
vibrate
22.
Ice Melting is an example of.......
a)
A liquid turning into a gas
b)
A solid turning into a liquid
c)
Gas turning into a liquid.
d)
A ssolid turning into a liquid
23.
An inflated balloon is placed in a refrigerator. Which statement describes the movement of the gas particles in the balloon?
a)
The particles move more slowly and become closer together.
b)
The particles move more slowly and become further apart.
c)
The particles move faster and become closer together.
d)
The particles move faster and become further apart. 
24.
The graph below shows part of the cooling curve of a substance. Which row correctly identifies P, Q and R?
a)
P: Gas, Q: Gas and Liquid, R: Liquid
b)
P: Liquid, Q: Gas and Liquid, R: Gas
c)
P: Gas, Q: Liquid, R: Solid
d)
P: Solid, Q: Liquid, R: Gas
25.
A solid compound X was heated steadily for 20 minutes. The graph below shows the change in temperature of X with time. At what temperature did X melt?  
a)
20°C
b)
40°C
c)
90°C
d)
100°C
26.
Which of the following states of matter has the LOWEST level of energy?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
27.
At what temperature does matter change phases from a solid to a liquid?
a)
Melting Point
b)
Boiling Point
c)
100 degrees Celsius
d)
Condensation Point
28.

Particles always ________________ each other, this gets stronger as the particles get ___________________.

a)

attract, farther apart

b)

attract, closer together

c)

repel, farther apart

d)

repel, closer together

29.
My glass of ice water is sitting in the sun and has droplets of water on the outside of the glass. What is happening?
a)
condensation
b)
evaporation
c)
melting
d)
freezing
30.
Which phase change occurs between points D and E if heat is added?
a)
Freezing
b)
Melting
c)
Boiling
d)
Condensing
31.

Which statement about the molecules in the gas carbon dioxide is correct?

a)

The molecules are close together.

b)

The molecules are diatomic.

c)

The molecules move randomly.

d)

The molecules all move with the same speed.

32.

SELECT ALL THAT APPLY

When you add energy to matter...

a)

...the particles move faster.

b)

...it might change state.

c)

...the temperature will increase.

d)

...you remove cold energy.

e)

All of the above.

33.
Which model of matter is most likely a liquid? 
a)
A
b)
B
c)
C
34.
Which state of matter has molecules that slide past each other but stay close together? They do not form a regular pattern.
a)
solid
b)
liquid
c)
gas
35.

What phase of matter exists in part D of the graph?

a)

Gas

b)

Liquid

c)

Solid

d)

Plasma

36.

What phase of matter exists in part C of the graph?

a)

Gas

b)

Liquid

c)

Solid

d)

Plasma

37.

Matter in which atoms vibrate so much that they are far apart.

a)

liquid

b)

solid

c)

gas

d)

thermal energy

38.

A _______ has no visible shape and fills its container.

a)

solid

b)

liquid

c)

gas