Physical changes

Front

What is a physical change?

Back

A physical change is a change in the state or appearance of matter without altering its chemical composition.

Front

What are the three states of matter?

Back

Solid, Liquid, Gas.

Front

What happens to the particles in a solid when it melts?

Back

The particles gain energy and move apart, changing from a fixed position to a more fluid state.

Front

What is melting?

Back

Melting is the process of changing from a solid to a liquid due to an increase in temperature.

Front

What is freezing?

Back

Freezing is the process of changing from a liquid to a solid due to a decrease in temperature.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into gas, usually due to an increase in temperature or decrease in pressure.

Front

What is condensation?

Back

Condensation is the process where gas turns into liquid, usually when the gas cools down.

Front

How does temperature affect the state of matter?

Back

Temperature affects the energy of particles; higher temperatures can cause solids to melt into liquids or liquids to evaporate into gases.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

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

Back

A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.