Science Readiness: Physical and Chemical Changes

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties. An example is baking a cake.

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container.

Front

What is an example of a chemical change?

Back

Iron rusting is an example of a chemical change.

Front

What happens during freezing?

Back

Freezing occurs when a liquid becomes a solid.

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

Can you give an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

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

Back

A physical change does not alter the chemical composition of a substance, while a chemical change results in the formation of new substances.

Front

What is an example of a substance that undergoes a physical change?

Back

Water boiling is an example of a physical change.

Front

What is the definition of freezing?

Back

Freezing is the process of a liquid turning into a solid when its temperature is lowered.