Front

What is matter?

Back

Matter is everything that has mass and occupies space.

Front

Why do the weights of water and sugar add up after the sugar dissolves?

Back

The sugar is still present; it is just in a different form.

Front

What happens to the mass of a substance when it changes from solid to liquid?

Back

The mass remains the same.

Front

True or False: When water changes from solid to liquid, some of the matter is destroyed.

Back

False.

Front

True or False: When ice changes to water, it transforms into a different type of matter.

Back

False.

Front

What is the principle of conservation of matter?

Back

The principle states that matter cannot be created or destroyed in a closed system.

Front

How does the state of matter affect its mass?

Back

The state of matter (solid, liquid, gas) does not affect its mass; it remains constant.

Front

What is an example of a physical change in matter?

Back

Melting ice is an example of a physical change.

Front

What is an example of a chemical change in matter?

Back

Burning wood is an example of a chemical change.

Front

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

Back

The particles gain energy and move more freely.