Bell Work - Thursday, Nov. 21, 2024

Front

What is a chemical change?

Back

A chemical change creates a new substance and cannot be undone.

Front

What happens when an ice cube melts?

Back

This is an example of a physical change.

Front

What is created during a chemical change?

Back

One or more new substances are created.

Front

What is an example of a chemical change?

Back

A precipitate forms.

Front

What is a sign that a chemical reaction has occurred?

Back

Formation of a gas.

Front

What is a physical change?

Back

A change that affects one or more physical properties but does not create a new substance.

Front

What is a precipitate?

Back

A solid that forms from a liquid solution during a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not create a new substance, while a chemical change does.

Front

What is an example of a chemical reaction?

Back

Burning wood.