Chemical vs. Physical 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 changing 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.

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning wood is an example of a chemical change.

Front

What happens to the substance in a physical change?

Back

The substance remains the same, but its form or appearance may change.

Front

What happens to the substance in a chemical change?

Back

The substance changes into one or more new substances with different properties.

Front

Is blending fruits a physical or chemical change?

Back

Blending fruits is a physical change.

Front

What is the significance of the flame test?

Back

The flame test is used to identify the presence of certain gases, like hydrogen, by observing the sound or color change.

Front

What are the states of matter?

Back

The states of matter are solid, liquid, gas, and plasma.

Front

What type of change occurs when water boils?

Back

Boiling water is a physical change.