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Water
We can't drink sea water because it contains salt.

Water

Water is everywhere on our planet, but we cannot use it all. This quiz explores where water comes from, how we use it, and why it matters.

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Fascinating Fact:

Most of the Earth’s water is salty ocean water, and only a small amount is fresh water that people can drink or use easily.

In KS2 Geography, pupils learn that water is found in oceans, rivers, lakes, ice, and underground. They explore how people depend on fresh water and why we must use it carefully.

  • Salt water: Water from the sea or ocean that contains lots of dissolved salt and is not safe to drink.
  • Fresh water: Water with little or no salt, found in rivers, lakes, rain, and underground, and used for drinking and washing.
  • Water supply: The fresh water that is stored, cleaned, and piped so people can use it in homes, schools, and workplaces.
How much of the Earth is covered by water for KS2?

About two thirds of the Earth is covered by water, mostly in the oceans. Only a small part of this water is fresh and easy for people to use.

What is the difference between salt water and fresh water?

Salt water contains lots of dissolved salt and is mainly found in seas and oceans. Fresh water has very little salt and is found in rivers, lakes, rain, and underground stores.

How can we save fresh water at home and school?

We can save water by turning taps off fully, having shorter showers, fixing drips, using a watering can instead of a hose, and not wasting drinking water.

1 .
Which water issue is NOT a problem that causes death for people around the world?
Hosepipe ban
Drought
No clean water to drink
No sanitation
A hoepipe ban is a method we use to preserve water when there is a shortage
2 .
What is the cycle that ensures we do not run out of water?
Washing cycle
Carbon cycle
Water cycle
Life cycle
Water rises as vapour from the sea and the ground and forms as clouds. It then falls again as rain
3 .
Why can we NOT drink sea water?
It is dirty
It contains salt
It is needed by fish
It doesn’t taste nice
Salty water can make us very sick
4 .
Where is nine tenths of the Earth’s water?
In oceans
In rivers
In reservoirs
In lakes
There are five oceans in the world
5 .
What happens to the waste water from our homes?
It runs into rivers
It runs into the sea
It is cleaned at the sewage works
It soaks into the ground
The sewage works removes things like paper, fat, soap and human waste from the water
6 .
What is caused by too much rain falling at once?
Drought
Rivers
Floods
Dirty water
Floods can cause rivers to burst their banks and cause devastation
7 .
What is the process called when the gas cools and forms clouds?
Evaporation
Corrosion
Distillation
Condensation
When water vapour cools it forms droplets. The mist formed if you breathe on a mirror or window is condensation
8 .
Which is NOT an essential use for water?
Drinking
Toilets
Watering crops
Filling a paddling pool
Paddling pools are for fun rather than a necessity
9 .
Why should water be treated before we drink it?
It can carry disease
It tastes better
So the water company can charge us
To make it clear
Many people around the world die from water borne diseases
10 .
What is the process called when water turns into a gas and rises into the sky?
Evaporation
Corrosion
Distillation
Condensation
Sunshine and wind can both cause evaporation. That's how wet clothes dry on a washing line - the sun and wind evaporate the water in them
You can find more about this topic by visiting BBC Bitesize - Explore the water cycle

Author:  Amanda Swift (Primary School Teacher & Educational Content Developer)

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