Chemical & Physical Changes

Front

What is a chemical change?

Back

A process where one or more substances are transformed into new substances with different properties.

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What is a physical change?

Back

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

Front

What happens to the odor of a substance during a chemical reaction?

Back

The odor may change due to the formation of new substances.

Front

What type of change occurs when a new substance is formed?

Back

Chemical change.

Front

What is an example of a physical change?

Back

Melting ice or breaking a window.

Front

What is an example of a chemical change?

Back

A copper penny turning greenish due to oxidation.

Front

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

Back

Chemical changes result in new substances, while physical changes do not.

Front

What is an indicator of a chemical change?

Back

Change in color, temperature, formation of gas, or change in odor.

Front

What occurs during the melting of a popsicle?

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A physical change where the solid (ice) turns into a liquid (water).

Front

What is rusting an example of?

Back

A chemical change where iron reacts with oxygen to form iron oxide.