Matter and Its Properties: A Comprehensive Guide for Second Graders

Question 1

Which of these is NOT a state of matter that we usually see around us?

Accepted Answer

Plasma

Answer

Solid

Answer

Liquid

Answer

Gas

Question 2

What property of matter describes whether something can flow easily?

Accepted Answer

Viscosity

Answer

Density

Answer

Volume

Answer

Mass

Question 3

Changing from a solid directly to a gas, like dry ice, is called what?

Accepted Answer

Sublimation

Answer

Melting

Answer

Freezing

Answer

Evaporation

Question 4

Which of these is a mixture where the parts cannot be easily seen?

Accepted Answer

Salt and water

Answer

Sand and water

Answer

Oil and water

Answer

Salad

Question 5

Solids have a fixed shape and volume, but liquids do not have a fixed:

Accepted Answer

Shape

Answer

Volume

Answer

Size

Answer

Color

Question 6

What happens to the volume of a gas when the pressure on it increases?

Accepted Answer

Decreases

Answer

Increases

Answer

Stays the same

Answer

Cannot be determined

Question 7

Water can turn into steam. What state of matter is steam?

Accepted Answer

Gas

Answer

Solid

Answer

Liquid

Answer

Plasma

Question 8

What happens when a popsicle melts? It changes from a:

Accepted Answer

Solid to a liquid

Answer

Liquid to a solid

Answer

Gas to a solid

Answer

Liquid to a gas

Question 9

Which of these is an example of a gas?

Accepted Answer

Air

Answer

Ice cube

Answer

Water bottle

Answer

Metal spoon

Question 10

Is it true that we can create or destroy matter, like making something from nothing?

Accepted Answer

No, we cannot create or destroy matter.

Answer

Yes, we can create or destroy matter.

Question 11

Which state of matter is the most tightly packed, like when you squeeze a ball of clay?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Question 12

When you mix sand and water, you make a:

Accepted Answer

Mixture

Answer

Solution

Answer

Compound

Answer

Element

Question 13

When water turns into steam, what is happening?

Accepted Answer

Boiling

Answer

Freezing

Answer

Melting

Answer

Condensation

Question 14

What is NOT a state of matter?

Accepted Answer

Beam of light

Answer

Liquid

Answer

Solid

Answer

Gas

Question 15

What happens to ice when you heat it?

Accepted Answer

It melts.

Answer

It evaporates.

Answer

It freezes.

Answer

It boils.

Question 16

What process changes a liquid into a gas?

Accepted Answer

Evaporation

Answer

Melting

Answer

Condensation

Answer

Sublimation

Question 17

Which of these materials is a solid?

Accepted Answer

Metal

Answer

Water

Answer

Air

Answer

Steam

Question 18

Which state of matter has a definite shape and volume?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 19

Which change in matter creates a new substance?

Accepted Answer

Burning wood

Answer

Cutting paper

Answer

Mixing sugar in water

Answer

Boiling water

Question 20

What happens to the particles in matter when it is cooled?

Accepted Answer

They slow down and move closer together.

Answer

They speed up and move farther apart.

Answer

They change their shape.

Answer

They become invisible.

Question 21

Which tool is used to measure temperature?

Accepted Answer

Thermometer

Answer

Barometer

Answer

Anemometer

Answer

Scale

Question 22

What happens when we heat ice?

Accepted Answer

It melts

Answer

It turns into water

Answer

It turns into steam

Answer

It freezes

Question 23

Which sentence describes a liquid?

Accepted Answer

Takes the shape of its container

Answer

Has a definite shape

Answer

Can be compressed

Answer

Expands to fill its container

Question 24

Which material conducts electricity?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 25

Which example shows a chemical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Freezing water

Question 26

What is the symbol for gold?

Accepted Answer

Au

Answer

Ag

Answer

Fe

Answer

Cu

Question 27

Which special property do solids have?

Accepted Answer

They have a definite shape and volume.

Answer

They can flow easily.

Answer

They take the shape of their container.

Answer

They can be easily compressed.

Question 28

What happens to the particles in a substance when it changes from a solid to a liquid?

Accepted Answer

The particles move further apart.

Answer

The particles move closer together.

Answer

The particles change shape.

Answer

The particles slow down.

Question 29

Which of the following is an example of a chemical change?

Accepted Answer

Burning wood

Answer

Boiling water

Answer

Freezing water

Answer

Dissolving sugar in water

Question 30

What is the name of the process by which a liquid turns into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Answer

Melting

Question 31

What is the SI unit of mass?

Accepted Answer

Kilogram

Answer

Gram

Answer

Pound

Answer

Ounce

Question 32

What is the SI unit of length?

Accepted Answer

Meter

Answer

Yard

Answer

Foot

Answer

Inch

Question 33

When ice melts, what happens to the movement of the water molecules?

Accepted Answer

They move faster and get farther apart.

Answer

They move slower and get closer together.

Answer

They move faster and get closer together.

Answer

They move slower and get farther apart.

Question 34

Why do the particles in a gas move very fast?

Accepted Answer

Because the gas is hot.

Answer

Because the particles are tiny.

Answer

Because the particles are attracted to each other.

Answer

Because the gas is in a vacuum.

Question 35

Which of these is NOT a state of matter?

Accepted Answer

Energy

Answer

Solid

Answer

Liquid

Answer

Gas

Question 36

What is the name of the change that happens when a solid turns into a liquid?

Accepted Answer

Melting

Answer

Freezing

Answer

Evaporation

Answer

Condensation

Question 37

What is the unit used to measure the amount of matter in an object?

Accepted Answer

Gram

Answer

Liter

Answer

Meter

Answer

Second

Question 38

What happens when two liquids of different densities are mixed together?

Accepted Answer

They will form layers

Answer

They will mix evenly

Answer

They will react chemically

Answer

They will evaporate

Question 39

What is the most common gas in the Earth's atmosphere?

Accepted Answer

Nitrogen

Answer

Oxygen

Answer

Carbon dioxide

Answer

Argon

Question 40

What happens when a liquid is heated?

Accepted Answer

It vaporizes

Answer

It melts

Answer

It freezes

Answer

It sublimates

Question 41

Which of the following materials is the least dense?

Accepted Answer

Air

Answer

Wood

Answer

Water

Answer

Steel

Question 42

What term describes a mixture that appears uniform throughout?

Accepted Answer

Solution

Answer

Suspension

Answer

Colloid

Answer

Heterogeneous Mixture

Question 43

Which of these is NOT a property of matter?

Accepted Answer

Life Cycle

Answer

Mass

Answer

Color

Answer

Temperature

Question 44

What happens to the particles in a solid when it is heated?

Accepted Answer

They move faster

Answer

They slow down

Answer

They get bigger

Answer

They get smaller

Question 45

What is the term for a substance that is dissolved in another substance?

Accepted Answer

Solute

Answer

Solvent

Answer

Mixture

Answer

Solution

Question 46

What are the three main states of matter?

Accepted Answer

Solid, liquid, and gas

Answer

Solid, liquid, and energy

Answer

Liquid, gas, and energy

Answer

Water, ice, and steam

Question 47

Which of the following is an example of a solid object?

Accepted Answer

Ice

Answer

Water

Answer

Air

Answer

Steam

Question 48

When a solid turns into a liquid, what happens to the particles inside it?

Accepted Answer

They move faster and spread out.

Answer

They slow down and come closer together.

Answer

They change shape and become more dense.

Answer

They disappear and reappear in a new form.

Question 49

What is the process called when a liquid changes into a gas?

Accepted Answer

Evaporation

Answer

Freezing

Answer

Melting

Answer

Condensation

Question 50

Which of the following is NOT a mixture?

Accepted Answer

Pure water

Answer

Salt water

Answer

Sand and water

Answer

Air

Question 51

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Accepted Answer

A homogeneous mixture has the same composition throughout, while a heterogeneous mixture does not.

Answer

A homogeneous mixture is a solid, while a heterogeneous mixture is a liquid.

Answer

A homogeneous mixture is a compound, while a heterogeneous mixture is an element.

Answer

There is no difference between a homogeneous mixture and a heterogeneous mixture.

Question 52

Which of the following is an example of a physical change?

Accepted Answer

Melting ice

Answer

Burning paper

Answer

Rusting iron

Answer

Cooking an egg

Question 53

What is the smallest unit of an element that still has the properties of that element?

Accepted Answer

Atom

Answer

Molecule

Answer

Neutron

Answer

Proton

Question 54

Which of the following is a conductor of electricity?

Accepted Answer

Copper

Answer

Rubber

Answer

Plastic

Answer

Wood

Question 55

Why is it hard to bend or change the shape of a solid object, like a rock?

Accepted Answer

Because the tiny pieces that make up solids are packed tightly together.

Answer

Because solids are too strong.

Answer

Because solids don't have any air inside them.

Answer

Because solids are always cold.

Question 56

Which of these is a solid?

Accepted Answer

Ice

Answer

Water

Answer

Air

Answer

Sand

Question 57

What is the state of matter that has a definite shape and volume?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Question 58

Which of these is an example of a mixture?

Accepted Answer

Salt water

Answer

Pure water

Answer

Air

Answer

Sugar

Question 59

What is the primary difference between a solid and a liquid?

Accepted Answer

Solids have a definite shape, liquids do not.

Answer

Solids have a higher density than liquids.

Answer

Liquids can be compressed, solids cannot.

Answer

Solids are always colder than liquids.

Question 60

Which of these materials is a conductor of electricity?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 61

What is the standard unit of measurement for volume?

Accepted Answer

Milliliter

Answer

Gram

Answer

Centimeter

Answer

Kilogram

Question 62

Which of these is a naturally occurring resource?

Accepted Answer

Oil

Answer

Plastic

Answer

Paper

Answer

Glass

Question 63

What are the three states of matter?

Accepted Answer

Solid, Liquid, Gas

Answer

Hot, Cold, Warm

Answer

Small, Medium, Large

Answer

Rough, Smooth, Hard

Question 64

Which of these is an example of a solid?

Accepted Answer

Ice

Answer

Water

Answer

Air

Answer

Smoke