Conserving Earth's Water

What percentage of the earth is water?

• 50%

• 60%

• 71%

• 80%

Tags

NGSS.MS-ESS2-4

"Ensuring availability of water for future generations" is a

• Goal of water conservation
• Strategy of water conservation
• Key activity of water conservation

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-4

what is the water division of earth

• ocean water 97.5 per cent,freshwater frozen as ice 1.5 per cent and freshwater 1 per cent
• ocean water-47%,freshwater 50%,freshwater frozen as ice 3%
• ocean water 1%,freshwater frozen as ice-90%,freshwater9%
• freshwater-33.33%,freshwater frozen as ice 33.33%,ocean water 33.33%

Tags

NGSS.MS-ESS2-4

A scientist studies a sample of swamp water. She finds that there are many dead plants and fish in the water. ________ in the water could be the main cause of this.

• oxygen

• litter and pollution

• mud and silt

• pebbles and sand

Tags

NGSS.MS-LS2-4

what is the main cause of water pollution?

• invasive species

• animals

• plants and insects

• human impact and decision making

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Which of the following is a way of conserving water?

• Leave the tap running while brushing teeth
• Use a hose to wash the car
• Use the washing machine at full load
• Leave the shower running while soaping

Why do we need to conserve water?

• It is an unlimited resource. 
• It is a limited resource. 
• There is a lot of water. 
• There is no need to conserve water.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4

 It’s okay to flush some trash down the toilet like cotton balls and tissue

• True
• False

Keeping the water running when you brush your teeth wastes a lot of water.

• True
• False

When is the best time of day to water your lawn?

• Early morning or late evening
• In the afternoon
• All day long
• At night