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Matter & Phase Changes Review Quiz

Total questions: 100

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

What is the smallest unit of matter?

a)

Molecule

b)

Atom

c)

Compound

d)

Cell

2.

Which of these is a compound?

a)

Oxygen gas (O₂)

b)

Gold (Au)

c)

Salt (NaCl)

d)

Hydrogen (H)

3.

What does density measure?

a)

How much space an object takes up

b)

How heavy something feels

c)

How tightly mass is packed into a volume

d)

How well something dissolves

4.

Which property describes how well something transfers heat or electricity?

a)

Solubility

b)

Conductivity

c)

Magnetism

d)

Density

5.

Which of these is an observable property?

a)

Mass

b)

Volume

c)

Color

d)

Density

6.

Why do scientists use standard units?

a)

To make objects look bigger

b)

To compare results accurately

c)

To make objects weigh more

d)

To avoid using numbers

7.

What does a model help scientists do?

a)

See atoms directly

b)

Represent things too small to see

c)

Make new substances

d)

Change mass

8.

Which property would be most important for a space probe material?

a)

Color

b)

Conductivity

c)

Ability to withstand heat

d)

Solubility

9.

Which of these is a molecule but not a compound?

a)

Oxygen gas (O₂)

b)

Water (H₂O)

c)

Salt (NaCl)

d)

Carbon dioxide (CO₂)

10.

Which tool is used to measure mass?

a)

Ruler

b)

Balance scale

c)

Thermometer

d)

Graduated cylinder

11.

What is the boiling point of water?

a)

32°F

b)

100°F

c)

212°F

d)

50°F

12.

What phase change occurs when a gas turns into a liquid?

a)

Melting

b)

Condensation

c)

Boiling

d)

Evaporation

13.

What is the melting point of water?

a)

0°F

b)

100°F

c)

212°F

d)

32°F or 0°C

14.

Which of the following is a physical change?

a)

Melting ice

b)

Burning wood

c)

Rusting iron

d)

Cooking an egg

15.

What phase change occurs when a liquid slowly turns into a gas from the surface?

a)

Boiling

b)

Freezing

c)

Evaporation

d)

Condensation

16.

Which phase change turns a liquid into a solid?

a)

Melting

b)

Condensation

c)

Freezing

d)

Boiling

17.

What process turns a solid into a liquid?

a)

Melting

b)

Boiling

c)

Freezing

d)

Condensation

18.

What type of change is boiling water?

a)

No change

b)

Physical change

c)

Phase-neutral change

d)

Chemical change

19.

What phase changes occurred in Maria’s water story?

a)

Melting and condensation

b)

Condensation and evaporation

c)

Boiling and freezing

d)

Freezing, melting, boiling

20.

What tool could you use to separate a mixture like trail mix?

a)

Beaker

b)

Thermometer

c)

Strainer or hand

d)

Microscope

21.

Which vocabulary word means “the substance that gets dissolved”?

a)

Solvent

b)

Solute

c)

Solution

d)

Mixture

22.

What is the solvent in a cup of salt water?

a)

Lemon juice

b)

Salt

c)

Water

d)

Sugar

23.

Which of the following is a mixture?

a)

Sugar water

b)

Salt water

c)

Lemonade

d)

Trail mix

24.

Why is lemonade considered a solution?

a)

The sugar dissolves and cannot be seen

b)

It is made with water

c)

It is yellow

d)

It contains fruit

25.

Which change creates a new substance?

a)

Boiling

b)

Melting

c)

Burning

d)

Evaporation

26.

What dissolves in a solution?

a)

Solvent

b)

Solute

c)

Mixture

d)

Atom

27.

Which can be separated easily?

a)

Solution

b)

Mixture

c)

Compound

d)

Molecule

28.

What are the solute and solvent in lemonade?

a)

Solute = water, Solvent = sugar

b)

Solute = sugar, Solvent = water

c)

Solute = lemon juice, Solvent = sugar

d)

Solute = fruit, Solvent = water

29.

What is a solution?

a)

A mixture where parts stay separate

b)

A mixture where one substance dissolves into another

c)

A chemical reaction

d)

A solid and a gas combined

30.

Which of these is a solution?

a)

Trail mix

b)

Salt water

c)

Sand and water

d)

Oil and vinegar

31.

What is a molecule?

a)

The smallest unit of matter

b)

Two or more atoms bonded together

c)

A tool for measuring mass

d)

A type of solution

32.

What is a compound?

a)

A mixture of solids

b)

A substance made of two or more different atoms chemically joined

c)

A gas that dissolves

d)

A model of a molecule

33.

What is a model in science?

a)

A real object

b)

A representation of something too small or large to see

c)

A measuring tool

d)

A type of atom

34.

What is solubility?

a)

How well something conducts electricity

b)

The ability of a substance to dissolve

c)

The amount of space something takes up

d)

The color of a substance

35.

What is magnetism?

a)

A change in temperature

b)

The ability to dissolve

c)

A property that makes a material attracted to magnets

d)

A type of molecule

36.

What is a physical change?

a)

A change that creates a new substance

b)

A change that affects form but not composition

c)

A change in color only

d)

A change in temperature

37.

What is a chemical change?

a)

A change that affects only the shape

b)

A change where a new substance is formed

c)

A change in size

d)

A change in mass

38.

What is conductivity?

a)

How well a material allows heat or electricity to flow

b)

How tightly packed matter is

c)

How much space something takes up

d)

How well something dissolves

39.

What is volume?

a)

The amount of matter in an object

b)

The amount of space an object takes up

c)

The ability to dissolve

d)

The ability to conduct heat

40.

What is mass?

a)

The amount of space something takes up

b)

The amount of matter in an object

c)

The ability to dissolve

d)

The ability to attract magnets

41.

Which of these is a measurable property?

a)

Color

b)

Texture

c)

Density

d)

Luster

42.

Which of these is an observable property?

a)

Mass

b)

Volume

c)

Color

d)

Density

43.

What tool would you use to measure volume?

a)

Balance scale

b)

Ruler

c)

Graduated cylinder

d)

Thermometer

44.

What tool would you use to measure temperature?

a)

Thermometer

b)

Ruler

c)

Balance scale

d)

Magnet

45.

What tool would you use to measure density?

a)

Thermometer

b)

Balance scale and graduated cylinder

c)

Ruler and magnet

d)

Microscope

46.

Which property showed the biggest difference between the meteorite and Earth rock?

a)

Color

b)

Magnetism

c)

Volume

d)

Texture

47.

Why is it important to use standard units?

a)

To make objects look bigger

b)

To compare results accurately

c)

To avoid using numbers

d)

To change the mass

48.

What is the solute in salt water?

a)

Water

b)

Salt

c)

Sugar

d)

Lemon juice

49.

What is the solvent in salt water?

a)

Water

b)

Salt

c)

Sugar

d)

Lemon juice

50.

What happens when water reaches its boiling point?

a)

It freezes

b)

It turns into steam

c)

It dissolves

d)

It condenses

51.

A change that affects form but not composition is called a ________.

a)

physical change

b)

chemical change

c)

nuclear change

d)

biological change

52.

A change where a new substance is formed is called a ________.

a)

chemical change

b)

physical change

c)

reversible change

d)

temporary change

53.

How well a material allows heat or electricity to flow is called ________.

a)

conductivity

b)

density

c)

elasticity

d)

opacity

54.

The amount of space an object takes up is called ________.

a)

volume

b)

mass

c)

weight

d)

density

55.

The amount of matter in an object is called ________.

a)

mass

b)

volume

c)

weight

d)

density

56.

Which property is measured by how much mass is contained in a given volume?

a)

Color

b)

Volume

c)

Density

d)

Magnetism

57.

Which property describes the appearance of an object?

a)

Density

b)

Magnetism

c)

Color

d)

Volume

58.

Which tool is used to measure the volume of a liquid?

a)

Thermometer

b)

Balance scale

c)

Graduated cylinder

d)

Magnet

59.

Which tool is used to measure temperature?

a)

Thermometer

b)

Graduated cylinder

c)

Balance scale

d)

Magnet

60.

Which tools are used to measure mass and volume?

a)

Thermometer and magnet

b)

Balance scale and graduated cylinder

c)

Graduated cylinder and thermometer

d)

Magnet and balance scale

61.

Which property allows certain metals to attract other metals?

a)

Density

b)

Magnetism

c)

Color

d)

Volume

62.

Why do scientists use standard tools to measure?

a)

To compare results accurately

b)

To make experiments longer

c)

To use more equipment

d)

To change results

63.

Which substance is commonly used to melt ice on roads?

a)

Water

b)

Salt

c)

Sand

d)

Sugar

64.

Which substance is essential for life and covers most of Earth's surface?

a)

Salt

b)

Water

c)

Sand

d)

Oil

65.

What happens to water when it is heated to 100°C?

a)

It turns into steam

b)

It freezes into ice

c)

It turns into salt

d)

It becomes solid

66.

What state of matter is pictured?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

67.
What state of matter is Y?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
68.
When you heat water it turns into a ____
a)
liquid
b)
water
c)
gas
d)
solid
69.
When molecules flow around each other, they are in this phase
a)
solid
b)
liquid
c)
gas
d)
plasma
70.

TRUE or FALSE: In order to change the state of matter, you need increase or decrease the energy (heat).

a)

TRUE

b)

FALSE

71.

When changing a substance from liquid to solid, the energy has to...

a)

INCREASE

b)

DECREASE

72.
The diagram below shows changes happening to water in a specially shaped bottle.  What changes did the water undergo? 
a)
melting and then freezing
b)
freezing and then evaporation
c)
condensation and then melting
d)
evaporation and then condensation
73.

Which arrow shows melting?

a)

1

b)

2

c)

3

d)

4

74.

Which substance in the image is a most likely a liquid?

a)

Substance A

b)

Substance B

c)

Substance C

75.

When a gas changes into a liquid, it is called ________________.

a)

evaporation

b)

condensation

c)

melting

d)

freezing

76.

a change that alters a substance without changing its chemical composition or its identity

a)

Chemical Change

b)

Physical Change

c)

Chemical and Physical Change

d)

Matter

77.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
78.

The boiling point of a substance is the temperature at which it changes from

a)

a liquid to a gas

b)

a liquid to a solid

c)

a gas to a solid

d)

a solid to a liquid

79.
Which example best describes a physical change?
a)
baking a pie
b)
burning a candle
c)
making a paper airplane
d)
lighting a match
80.

Items KEEP their physical properties

a)

Solution

b)

Liquids

c)

Mixture

d)

Soluble

81.
a)

solute

b)

solvent

c)

solution

82.
Chicken noodle soup is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
83.
Chocolate milk is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
84.
a)

solvent

b)

solute

85.

The picture is an example of _____________.

a)

freezing

b)

evaporation

c)

condensation

d)

melting

86.

Why does the glass on the right have less water in it?

a)

the solid turned into a gas

b)

the gas turned into a liquid

c)

the liquid turned into a gas

87.

What state of matter is shown in the image?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

88.
When the temperature at which a substance changes from a liquid to a gas.
a)
Melting Point, 0 degrees Celsius
b)
Freezing Point, 0 degrees Celsius
c)
Boiling Point, 100 degrees Celsius
89.
When the temperature at which a substance changes from a liquid to a solid.
a)
Melting Point, 0 degrees Celsius
b)
Boiling Point, 100 degrees Celsius
c)
Freezing Point, 0 degrees Celsius
90.
The opposite phase of melting is 
a)
freezing 
b)
sublimation
c)
condensation 
d)
deposition 
91.

What are the four major phase changes?

a)

Freezing, Melting, Condensation, Evaporation

b)

Melting, Condensation, Evaporation, Heat

c)

Freezing, Melting, Condensation, Cooling

d)

Condensation, Evaporation, Freezing, Heating

92.
Which of these will change solid iron to a liquid?
a)
Raising the air pressure
b)
Increasing its temperature
c)
Crushing the solid iron
d)
Adding water to the iron
93.

The process by which a liquid changes into gas is ____________________.

a)

condensation

b)

density

c)

evaporation

d)

law of conservation of mass

94.
The steam coming off the pot of boiling water is an example of....
a)
a solid becoming a liquid
b)
a liquid becoming a solid
c)
a liquid becoming a gas
d)
a gas becoming a liquid
95.
A puddle of water seemed to disappear. The heat caused the water to -
a)
melt
b)
condense
c)
evaporate
d)
cool
96.

A noticeably different form or state of the same substance

a)

Mixture

b)

Phase

c)

Mass

d)

Density

97.

Adding baking soda to vinegar

a)

Physical Change

b)

Chemical Change

98.

What is a change in which a new substance is NOT formed?

a)

physical change

b)

chemical change

c)

color change

d)

physical property

99.
What term describes a solid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
100.

Gas changing to a solid

a)

sublimation

b)

deposition

c)

freezing

d)

melting

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