Earth: The Big Blue Planet Quiz

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

• 50%

• 25%

• 75%

• 90%

What percentage of all water on Earth is salt water?

• 50%

• 25%

• 3%

• 97%

How much of the Earth's water is fresh water?

• 1%

• 3%

• 5%

• 10%

What is the main reason Earth appears blue from space?

• The atmosphere

• The land

• The clouds

• The oceans

What do we need fresh water for?

• To swim

• To survive

• To cook

• To play

What is the state of most of the fresh water on Earth?

• Liquid

• Frozen

• Gaseous

• Polluted

What type of water does fresh water not contain?

• Minerals

• Chlorine

• Salt

• Bacteria

What is the total amount of water on Earth that we can actually use for life?

• 3%

• 1%

• 5%

• 10%

Tags

CCSS.7.RP.A.3

What is the ocean primarily filled with?

• Rain water

• Polluted water

• Salt water

• Fresh water

How many oceans are there on Earth according to the text?

• Four

• Three

• Two

• One