Chemical and Physical Changes

Front

What happens to particles when the temperature of matter decreases?

Back

The particles slow down and move closer together.

Front

Which of the following is a physical change? Cutting paper, pH test, Burning marshmallow, Roasting a Turkey?

Back

Cutting paper.

Front

What is a physical property?

Back

A characteristic of a substance that can be observed without changing its identity, such as colour.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, such as Sweet Tea.

Front

What does point 3 on a heating graph represent?

Back

Liquid Heating.

Front

Define a chemical change.

Back

A change that results in the formation of new chemical substances.

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 alter the substance's chemical composition, while a chemical change does.

Front

What is an example of a chemical property?

Back

Flammability.

Front

What is the definition of a mixture?

Back

A combination of two or more substances that retain their individual properties.