The video explains the water cycle, highlighting how water moves between the ground and atmosphere, changing forms. It covers processes like evaporation, condensation, and precipitation, and describes different paths water can take, such as becoming part of glaciers or groundwater. The complexity of the water cycle and its various paths through Earth's ecosystems are also discussed.

What are the three states in which water naturally exists on Earth?

• Solid, liquid, and gas

• Liquid, gas, and plasma

• Solid, liquid, and plasma

• Solid, gas, and plasma

What percentage of the Earth's water is found in the oceans?

• Over 96%

• Over 80%

• Over 70%

• Over 50%

What process causes water on the Earth's surface to turn into vapor?

• Transpiration

• Condensation

• Evaporation

• Precipitation

What happens to water vapor when it rises into the atmosphere?

• It stays as vapor indefinitely

• It condenses into clouds

• It turns into rain immediately

• It becomes part of the ocean

What can happen to snow instead of melting and running off as river water?

• It can evaporate directly

• It can become part of the ocean directly

• It can become part of a glacier

• It can turn into groundwater immediately

How can rainwater become groundwater?

• By infiltrating the ground

• By freezing

• By evaporating

• By condensing

What is one way groundwater can return to the atmosphere?

• Through transpiration from plants

• Through precipitation

• Through evaporation

• Through freezing

Why is the water cycle considered complex and not fully understood?

• Because it only involves a few simple processes

• Because it involves many interconnected paths and processes

• Because it only occurs in the ocean

• Because it is a new scientific concept