The Journey of Water Through the Cycle of Life

The video explains the importance of water on Earth, covering its distribution and role in life. It introduces the water cycle, detailing its five steps: evaporation, condensation, precipitation, runoff, and percolation. Each step is explained with examples, highlighting how water moves through different spheres of the Earth, such as the hydrosphere, atmosphere, and lithosphere.

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

• 80%

• 70%

• 60%

• 50%

What is the main difference between salt water and fresh water on Earth?

• Salt water is drinkable

• Fresh water is more abundant

• Salt water makes up 97.5% of Earth's water

• Fresh water is found in oceans

What is the first step in the water cycle?

• Condensation

• Evaporation

• Precipitation

• Runoff

During evaporation, what happens to the water at the surface?

• It precipitates

• It freezes

• It turns into vapor

• It condenses

What forms when water vapor condenses at high altitudes?

• Clouds

• Hail

• Snow

• Rain

What happens to water droplets when the air cannot hold any more water?

• They evaporate

• They freeze

• They condense

• They precipitate

Which of the following is NOT a form of precipitation?

• Rain

• Fog

• Sleet

• Hail

What is the process called when water runs over the surface of the Earth?

• Condensation

• Runoff

• Evaporation

• Percolation

What happens during percolation?

• Water forms clouds

• Water is absorbed into the ground

• Water turns into vapor

• Water flows into the atmosphere

What happens to minerals during runoff?

• They form clouds

• They are carried with the water

• They are left behind

• They evaporate