Unit 2 Test

Front

What is run-off?

Back

Run-off is the flow of water from higher ground to lower ground due to the pull of gravity.

Front

What happens to surface currents when they meet continents?

Back

Surface currents are deflected (change paths) when they meet continents.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction of water molecules to other substances.

Front

What does permeability measure?

Back

Permeability measures how easily water can flow through an aquifer.

Front

What is cohesion in relation to water?

Back

Cohesion is the attraction between water molecules that causes them to form drops.

Front

Define precipitation.

Back

Precipitation is any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface.

Front

What is transpiration?

Back

Transpiration is the process by which water is absorbed by plants and then released as vapor into the atmosphere.

Front

Explain capillary action.

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces.

Front

What is surface tension?

Back

Surface tension is the elastic tendency of a fluid surface that makes it acquire the least surface area possible.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth.