Science Ch 6

What is true about all natural resources?

• They are made by people.
• They can be replaced quickly.
• They come from Earth.
• They take years to form. 

How can people cut back on garbage?

• They can stop using natural resources.
• They can reuse things over and over.
• They can bury their trash in the ground.
• They can toss their trash in the ocean.

What are mica and quartz?

• plants
• animals
• soil
• minerals

Where do plants grow best?

• in topsoil
• in subsoil
• on rocks
• on tree bark

How does compost make soil healthy?

• It adds minerals to the soil.
• It adds nutrients to the soil.
• It keeps soil from losing water.
• It makes soil look much darker.

Living and nonliving things can be hurt by 

• pollution 
• wind 
• soil
• rock

Rocks are made of 

• soil
• minerals 
• litter
• compost 

To _______ something is to save it for future use. 

• soil 
• reduce 
• litter
• conserve 

To save water, people should _________ the amount they use.

• recycle
• reduce
• reuse
• conserve 

Piece of rotting plants and animals are important parts of 

• minerals
• pollution 
• litter 
• compost