Unit 4 - Lesson 5

Question 1

Many of our natural resources come from plants

Answer 1

Wood from trees is used to build and for furniture

Health products

Question 2

We can use a natural resource in its raw form or we can change it into something new

Answer 2

Example:
Rocks are used to pave roads

Sand is combined with cement to make concrete

Sand is heated and changed to glass

Question 3

Pollution

Answer 3

Happens when harmful substances mix with water, air, or soil

Question 4

Conservation

Answer 4

Using less of something to make its supply last longer

Preserving the natural condition of the environment

Question 5

Endangered species

Answer 5

Organisms whose population is at risk for dying out