Purifying Water

Avni talks to Emma about the wonders of Freshwater - luckily she knows that Freshwater is __________.

• water only found in the atmosphere

• water found in the oceans

• water found only underground

• water found in lakes, rivers and streams

What percentage of the Earth is covered with water?

• 71%

• 32%

• 50%

• 93%

What percentage of ALL WATER on Earth is saltwater?

• 20%

• 3%

• 97%

• 84%

What percentage of freshwater is available for us to use?

• 1%

• 2%

• 3%

• 10%

What percentage of freshwater is located in glaciers and ice caps?

• 1%

• 32%

• 4%

• 68%

Which one shows the correct amount of water on Earth from LARGEST to SMALLEST?

• Glaciers, groundwater, oceans

• Oceans, groundwater, glaciers

• Oceans, glaciers, groundwater

Which statement is true?

• About 70% of Earth’s surface is covered in water

• About 30% of Earth’s surface is covered in water

• Freshwater makes up about 90% of Earth’s surface

What percentage of the Earth’s sea water is salt?

• 1.5%

• 3.5%

• 25%

• 50%

Luke has a big ol' cup of Potable Water. Is this water safe to drink?

• Yes, Luke is safe.

• No, Luke is in trouble.

Water that has been used by humans, but does not contain sanitary waste is called ________________.

• greywater

• septic water

• potable water

• none of these