Unit 3 Review

Front

What is a mixture?

Back

A combination of two or more substances that can be separated physically.

Front

What is a pure substance?

Back

A material made up of only one type of particle, which cannot be separated into other materials by physical means.

Front

What is adhesion?

Back

The attraction between water molecules and other substances.

Front

What is cohesion?

Back

The attraction between water molecules to each other.

Front

How does cohesion affect water behavior?

Back

Cohesion allows water molecules to stick together, creating surface tension.

Front

How does adhesion affect water behavior?

Back

Adhesion allows water to stick to other surfaces, such as glass or dirt.

Front

What is capillary action?

Back

The ability of water to flow in narrow spaces without the assistance of external forces, due to adhesion and cohesion.

Front

What is surface tension?

Back

The elastic-like force existing on the surface of a liquid, caused by the attraction of molecules.

Front

How can mixtures be separated?

Back

Mixtures can be separated by physical methods such as filtration, distillation, or evaporation.

Front

What is an example of a mixture?

Back

Salad, air, or a sand and salt mixture.