5.8B The Water Cycle

Front

What is the water cycle?

Back

The water cycle is the continuous process by which water moves from the Earth's surface to the atmosphere and back, involving processes like evaporation, condensation, and precipitation.

Front

What is evaporation?

Back

Evaporation is the process where water changes from a liquid to a gas, usually due to heat from the sun.

Front

What is condensation?

Back

Condensation is the process where water vapor cools and changes back into liquid water, forming clouds.

Front

What is precipitation?

Back

Precipitation is any form of water that falls from clouds to the Earth's surface, including rain, snow, sleet, and hail.

Front

What is run-off?

Back

Run-off is water that flows over the ground and returns to oceans, rivers, and lakes after precipitation.

Front

What is transpiration?

Back

Transpiration is the process by which plants release water vapor into the air through their leaves.

Front

What percentage of the Earth's surface is covered by water?

Back

Approximately 75% to 95% of the Earth's surface is covered by water.

Front

What is the main source of energy for the water cycle?

Back

The sun provides the energy needed for the water cycle to occur.

Front

What are oceans?

Back

Oceans are large bodies of saltwater that cover about 71% of the Earth's surface and are a key component of the water cycle.

Front

What role do clouds play in the water cycle?

Back

Clouds are formed by condensation and are essential for transporting water vapor and eventually releasing it as precipitation.