Chemical and Physical Changes in Matter

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, often accompanied by energy changes, color changes, or gas production.

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, such as changes in state, shape, or size.

Front

What are the three states of matter?

Back

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

Front

What happens to water when it evaporates?

Back

When water evaporates, it changes from a liquid state to a gas state due to an increase in temperature.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change, as it transforms the wood into ash and smoke.

Front

What is an example of a physical change?

Back

Cutting paper is an example of a physical change, as it alters the shape and size of the paper but not its chemical composition.

Front

What is the process of melting?

Back

Melting is the process where a solid turns into a liquid when heat is applied.

Front

What is the process of freezing?

Back

Freezing is the process where a liquid turns into a solid when it loses heat.

Front

What is condensation?

Back

Condensation is the process where a gas turns into a liquid when it cools down.

Front

What is the definition of evaporation?

Back

Evaporation is the process where a liquid changes into a gas, usually due to an increase in temperature.