5.4 Matter

Front

What happens to gallium when held in a person's hand for five minutes?

Back

Gallium will change to a liquid because its melting point is about 30°C, which is lower than the human body temperature of 37°C.

Front

How are mixtures and solutions alike?

Back

They both have two or more ingredients.

Front

What is required to change solid iron to a liquid?

Back

Increasing its temperature.

Front

What is the process called when a liquid turns into a gas?

Back

Evaporation.

Front

What happens to ice cream when it is left out of the freezer?

Back

It changes from a solid to a liquid.

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance is dissolved in another.

Front

What is the melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.