Chapter 6 - Lesson 4

Question 1

How is air an important resource?

Answer 1

1. Moving air brings clouds, then rain falls
2. People need air to breathe
3. Moving air can be used to make electricity

Question 2

Air an water can be replaced. the oxygen in air is replaced by ____. Water is replaced by ____.

Answer 2

plants/trees, rain

Question 3

People use water for

Answer 3

farming, cooking, drinking,swimming, fishing

Question 4

Fresh water is found in

Answer 4

streams and most lakes

Question 5

Water can also be found below ground. It is called

Answer 5

groundwater

Question 6

Most of the water on the earth is in oceans. The oceans are full of

Answer 6

salt

Question 7

______ or ______ carry water to where it is needed

Answer 7

Pipes, ditches

Question 8

One way to make a lake is to build a wall called a

Answer 8

dam

Question 9

People dig deep holes to reach _____, These holes are called_____.

Answer 9

groundwater, wells

Question 10

What do people build to make water safe to drink?

Answer 10

Water Treatment Plant

Question 11

_____ is what happens when harmful things get into water, land and air. It can make living things sick.

Answer 11

Pollution

Question 12

How does pollution happen in nature?

Answer 12

Volcanoes and fire put dust and gas into the air. Soil can wash into water.

Question 13

How do people waste water?

Answer 13

They let faucets drip, take long showers, run a dishwasher that is not full.

Question 14

To ____ means to save resources

Answer 14

conserve

Question 15

How can you make resources last longer?

Answer 15

1. Plant trees to conserve soil and put oxygen back into air
2. ride a bike, turn down heat and turn off lights when leaving a room to conserve fossil fuels
3. take a quick shower or turn off water while brushing teeth conserves water
4. Dispose of trash a chemicals properly to protect land and water