Science (4th) Ch. 6 Lesson 5 - Pollution and Conservation (vocab & notes)

Question 1

All the living and nonliving things in an area.

Answer 1

environment

Question 2

Harmful or unwanted material that has been added to the environment.

Answer 2

pollution

Question 3

Harmful rain caused by the burning of fossil fuels.

Answer 3

acid rain

Question 4

The act of saving, protecting, or using resources wisely.

Answer 4

conservation

Question 5

A mixture of decaying matter that helps plants grow in soil.

Answer 5

compost

Question 6

To use less of something.

Answer 6

reduce

Question 7

To use something again.

Answer 7

Reuse

Question 8

To make new objects or materials from old objects or materials.

Answer 8

recycle

Question 9

Human activities can cause pollution of Earth’s land, air and water. Name four human activities that can cause pollution of Earth’s land.

Answer 9

littering
chemicals
solid wastes
acid rain

Question 10

Acid rain and other forms of __________ are caused by the overuse of fossil fuels.

Answer 10

air pollution

Question 11

What is one way to prevent pollution?

Answer 11

recycling

Question 12

Recycling is one way to __________ pollution.

Answer 12

prevent

Question 13

Name three ways to conserve water.

Answer 13

1. Turn off the faucet if you aren’t using it (like brushing your teeth)
2. Run only full loads in laundry machines and dishwashers
3. Fix leaky faucets and toilets

Question 14

What is it called when farmers conserve nutrients in the soil by rotating their crops every year?

Answer 14

crop rotation