8.p.9.2 Physical vs Chemical Changes

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Front

Give an example of a physical change.

Back

Melting butter is an example of a physical change.

Front

Give an example of a chemical change.

Back

Rusting of iron is an example of a chemical change.

Front

What happens to the chemical composition of a substance during a physical change?

Back

The chemical composition remains the same during a physical change.

Front

What happens to the chemical composition of a substance during a chemical change?

Back

The chemical composition changes during a chemical change, resulting in new substances.

Front

Is freezing orange juice a physical or chemical change?

Back

Freezing orange juice is a physical change.

Front

Is the process of crafting a decorative bowl from copper a physical or chemical change?

Back

The process of crafting a decorative bowl from copper is a physical change.

Front

What is an indicator of a chemical change?

Back

Indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.

Front

What is an example of a process that indicates a chemical change?

Back

The development of rust on iron is an example of a process that indicates a chemical change.