Understanding Water and the Water Cycle

What elements make up water?

• Hydrogen and nitrogen

• Oxygen and carbon

• Carbon and nitrogen

• Hydrogen and oxygen

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

• 50%

• 80%

• 60%

• 70%

What is the primary benefit of the water cycle for living organisms?

• It changes the climate

• It creates new land

• It distributes atmospheric water

• It provides energy

Which process involves water turning into vapor and rising into the atmosphere?

• Collection

• Condensation

• Precipitation

• Evaporation

What percentage of atmospheric water vapor on land comes from plants?

• 10%

• 50%

• 90%

• 100%

What process involves water vapor turning into tiny droplets?

• Evaporation

• Transpiration

• Condensation

• Precipitation

What is the term for water falling from clouds to the ground?

• Evaporation

• Condensation

• Precipitation

• Transpiration

Which of the following is NOT a type of precipitation?

• Hail

• Rain

• Snow

• Fog

What happens to precipitation that falls on land?

• It stays on the surface

• It turns into ice

• It enters the soil and becomes groundwater

• It evaporates immediately

What is the final process in the water cycle where water gathers in bodies of water?

• Evaporation

• Precipitation

• Collection

• Condensation