Topic 2: Changes in Matter Review Part 1

Front

What is the mass of an object after it breaks?

Back

The mass remains the same. For example, if a vase with a mass of 50g breaks, the mass of the broken pieces is still 50g.

Front

What indicates a physical change?

Back

A physical change is indicated by changes in shape, state, or temperature, but not by a change in the type of matter.

Front

What does NOT indicate a chemical change?

Back

A shape change does not indicate a chemical change.

Front

What is a physical change?

Back

A physical change is when the form or appearance of matter is altered without changing its chemical composition.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into vapor, such as water turning into steam.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance, indicated by color change, gas production, or temperature change.

Front

What is an example of a physical change?

Back

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

Front

What is an example of a chemical change?

Back

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

Front

What happens to the mass of matter during a physical change?

Back

The mass of matter remains constant during a physical change.

Front

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

Back

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