Water Cycles and Distribution Quiz

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

• 51%
• 71%
• 29%
• 97%

Which process describes water changing from liquid to gas?

• Condensation
• Melting
• Evaporation
• Precipitation

At what temperature does ice begin to melt?

• 32°F (0°C)
• 212°F (100°C)
• 50°F (10°C)
• 0°F (-18°C)

What percentage of Earth's water is salt water?

• 3%
• 29%
• 71%
• 97%

Which process involves water vapor turning back into liquid droplets?

• Evaporation
• Melting
• Condensation
• Infiltration

What is the primary purpose of desalination?

• Creating ocean currents
• Removing salt from seawater
• Increasing water temperature
• Generating electricity

Which factor provides heat energy for the water cycle?

• Gravity
• Wind
• The Sun
• Earth's core

What happens during infiltration?

• Water flows over land
• Water falls from the sky
• Water seeps into the ground
• Water turns into vapor

How many states can water exist in?

• Two
• Three
• Four
• Five

What percentage of Earth's water is fresh water?

• 1%
• 3%
• 10%
• 50%