The Water Cycle Assessment for 7th Grade

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

• 65%

• 69%

• 71%

• 75%

What percentage of water on Earth's surface is fresh water?

• 2%

• 3%

• 5%

• 7%

Which of the following is NOT mentioned as a common use of water?

• Drinking

• Transportation

• Agriculture

• Hygiene

In what state does water exist when it becomes water vapor?

• Plasma state

• Liquid state

• Solid state

• Gaseous state

What happens to water during the evaporation process?

• It changes from solid to liquid

• It changes from liquid to gas

• It changes from gas to liquid

• It changes from liquid to solid

Why is evaporation faster in tropical regions compared to polar regions?

• Because tropical regions have more water

• Because sunlight rays are vertical in tropical regions

• Because tropical regions are closer to the sun

• Because tropical regions have stronger winds

At what temperature does water boiling occur?

• 75°C

• 90°C

• 100°C

• 110°C

What percentage of the human body is composed of water?

• 60%

• 65%

• 70%

• 75%

Which statement about evaporation is correct?

• It only occurs at high temperatures

• It only occurs during daytime

• It occurs at any temperature

• It only occurs in warm climates

What is the main difference between evaporation and boiling?

• Only boiling produces water vapor

• Only evaporation requires heat

• Evaporation occurs at any temperature while boiling occurs at a specific temperature

• Boiling occurs at any temperature while evaporation occurs at a specific temperature