Topic 4 Review (Properties of Matter & Mixtures)

Front

What are solids?

Back

Solids are a state of matter where molecules are packed closely together and hardly move. They have a definite shape and volume.

Front

What are liquids?

Back

Liquids are a state of matter that have a definite volume but no definite shape. The molecules are spread out and can move past one another.

Front

What are gases?

Back

Gases are a state of matter that have no definite shape or volume. The molecules are far apart and move freely.

Front

What is melting?

Back

Melting is the change in state from solid to liquid.

Front

What happens when sugar dissolves in water?

Back

When sugar dissolves in water, it breaks down into smaller particles and spreads throughout the liquid.

Front

How can you make sugar dissolve faster in water?

Back

You can make sugar dissolve faster by stirring the mixture.

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 combine.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, such as saltwater.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the components are not uniformly distributed, such as a salad.

Front

What is the boiling point?

Back

The boiling point is the temperature at which a liquid turns into a gas.