Modeling Matter Unit Review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a property of a substance?

Back

A property is a characteristic that helps to identify a substance, such as color, density, or boiling point.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed when two or more elements chemically bond.

Front

What happens to the molecules in a solid when heated?

Back

The molecules in a solid vibrate faster and may eventually break free to become a liquid.

Front

What is the process of evaporation?

Back

Evaporation is the process by which liquid turns into gas.

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

How does temperature affect gas?

Back

As temperature increases, gas molecules move faster and spread apart, causing the gas to expand.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, such as salt in water.