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Geography Gr 4 Matt Redfern > MJ Water > Flashcards

Flashcards in MJ Water Deck (21)
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1
Q

True or False:

Three quarters of Earth is covered by land.

A

False, three quarters of Earth is covered by water.

2
Q

Is there more salt water on the Earth or more fresh water?

A

There is more salt water

3
Q

Name three places where water is used

A

Farming, Factories, Mines, Power stations and Gardens

Water is also used for recreational activities

4
Q

Name the two types of water

A

Salt water and fresh water

5
Q

Name two ways people pollute water

A

Factories empty waste into the oceans or rivers
People throw litter in rivers
People wash in rivers
People and animals go to the toilet in rivers
Pesticides from farms mix with rainwater

6
Q

What is it called when somebody changes something from its natural form?

A

Pollution

7
Q

True or False:

Dirty water can not harm you.

A

False, dirty water can make you sick

8
Q

What is a wetland?

A

Wetlands are places where the land is covered with shallow water. Reeds grow in them.

9
Q

What is water called when it sinks into the ground?

A

Groundwater

10
Q

What is a lake?

A

Lakes are natural pools of water with land all around them.

Basically the opposite of islands.

11
Q

What is a dam?

A

Dams are man-made walls built across the river to store water. They often let water fall from a height to make electricity.

12
Q

How do we get groundwater from the ground?

A

Wells and boreholes

13
Q

Describe the water cycle

A
  1. The Sun heats up the water
  2. The heat changes the water into water vapour
  3. The water vapour cools down to drops of water
  4. The drops of water form clouds
  5. The clouds rain into oceans, lakes and rivers
  6. The rainwater flows over the land to join rivers
14
Q

Do you find fresh or salt water in the sea?

A

Salt water

15
Q

Name three things we use water for

A

Drinking Washing clothes
Washing hands Washing dishes
Brushing teeth Bathing
Cleaning Showering
Cooking Art and Craft
Flushing toilets

16
Q

Name two places people collect fresh water

A

Rivers, dams, springs, boreholes and wells

17
Q

What is a reservoir?

A

A large tank in witch clean water is stored

18
Q

What is it called when there is no water for a long time?

A

Drought

19
Q

What is it called when there is too much water for a long time?

A

Flood!

20
Q

What is a building where water is cleaned called?

A

A purification plant

21
Q

If you want more activities where do you look?

A

In Topic 4: Water in South Africa

Thank you!