Conservation of Matter Concepts

Front

What is condensation?

Back

Condensation is the process where water vapor in the air cools and changes from a gas to a liquid, forming droplets on surfaces.

Front

What happens to water vapor particles when they cool?

Back

When water vapor particles cool, they lose energy and change from a gas to a liquid.

Front

What does it mean to conserve matter?

Back

To conserve matter means that the total amount of matter remains the same during a change or reaction; it is neither created nor destroyed.

Front

What can happen to particles during a chemical reaction?

Back

During a chemical reaction, particles can rearrange to form new substances.

Front

What are two signs of a chemical reaction when burning a candle?

Back

Two signs of a chemical reaction when burning a candle are the production of light and heat.

Front

What happens to bread when it is toasted?

Back

When bread is toasted, it undergoes a chemical reaction that changes its color and texture.

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.

Front

What is a chemical change?

Back

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

Front

What is an example of a physical change?

Back

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

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron.