Unit 2 Matter Review Part 2

Front

What type of mixture is saltwater?

Back

Homogeneous mixture: A mixture that has a uniform composition throughout.

Front

What type of mixture is Trail mix?

Back

Heterogeneous mixture: A mixture that does not have a uniform composition.

Front

What type of mixture is hot chocolate with marshmallows?

Back

Heterogeneous mixture: A mixture where the different components can be seen and separated.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is an example of a physical change?

Back

Inflating a tire: The shape and volume change, but the chemical composition of the air remains the same.

Front

What is a chemical change?

Back

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

Front

What is an example of a chemical change?

Back

Burning wood: The wood transforms into ash and gases, changing its chemical composition.

Front

What is a homogeneous mixture?

Back

A mixture that is consistent and uniform in composition throughout.

Front

What is a heterogeneous mixture?

Back

A mixture where the individual components can be seen and are not uniform.

Front

What is the boiling point?

Back

The temperature at which a liquid turns into vapor.