Water Cycle Concepts and Processes

The video explains the water cycle, starting with evaporation caused by the sun's heat. Water vapor rises, becomes clouds through condensation, and eventually falls as precipitation. Different types of precipitation, such as rain, snow, and hail, are discussed. The cycle is summarized, highlighting the short atmospheric journey of water compared to its long oceanic stay.

What is the main question addressed in the video?

• Why do we have seasons?

• Why does it rain?

• How do plants grow?

• What causes wind?

What causes water to evaporate from the Earth's surface?

• Wind

• Sun's heat

• Earth's rotation

• Moon's gravity

What happens to water when it evaporates?

• It turns into ice

• It becomes a gas called water vapor

• It remains as liquid

• It disappears

Why can't we see water vapor in the air?

• It is too small

• It is mixed with other gases

• It is invisible

• It is too far away

What term is used to describe the amount of water vapor in the air?

• Density

• Humidity

• Pressure

• Temperature

What process turns water vapor back into liquid water?

• Condensation

• Evaporation

• Sublimation

• Precipitation

What are clouds made of?

• Dust particles

• Ice crystals

• Mini-droplets of water

• Air molecules

What happens to droplets in clouds over time?

• They evaporate

• They combine to form larger droplets

• They disappear

• They turn into gas

What is the term for water or snow falling from the sky?

• Precipitation

• Condensation

• Sublimation

• Evaporation

Which type of precipitation is a mix of rain and snow?

• Hail

• Bruine

• Fog

• Grésil