Which of the following is an example of a solid?

• Rock
• Juice
• Air
• Smoke

Answer explanation

A solid has a definite shape and does not flow like liquids and gases.

What characteristic do all types of matter have?

• They can move
• They take up space and have mass
• They can glow in the dark
• They are always hard

Answer explanation

Matter is anything that occupies space and has mass.

Which of these materials is soft?

• Stone
• Cotton
• Glass
• Metal

Answer explanation

Cotton is soft compared to the other hard materials listed.

What property of water makes it flow easily?

• It is a liquid
• It is heavy
• It has a definite shape
• It can break easily

Answer explanation

Liquids do not have a definite shape, which allows them to flow.

Why is a balloon filled with air still considered matter?

• It is colorful
• It has weight and takes up space
• It makes a sound when it pops
• It is made of rubber

Answer explanation

Air is a gas, and gases are a form of matter because they take up space and have mass.

Which of these objects is NOT made of matter?

• A rainbow
• A wooden table
• A plastic bottle
• A cup of water

Answer explanation

A rainbow is light, which is energy and not matter.

What happens when you squeeze a sponge?

• It becomes hard
• It breaks into pieces
• It changes shape but returns to normal
• It turns into a liquid

Answer explanation

Sponges can be compressed but return to their original shape.

What happens to an ice cube when left under the sun?

• It will stay the same
• It will turn into water
• It will become solid
• It will disappear instantly

Answer explanation

Heat causes ice to melt into liquid water.

Which of the following is NOT a state of matter?

• Energy
• Solid
• Liquid
• Gas

Answer explanation

Energy is not a state of matter; it does not take up space or have mass.

What do you call the process of turning water into ice?

• Freezing
• Melting
• Evaporation
• Boiling

Answer explanation

Freezing is when liquid water turns into solid ice.