What do you call the layer of air that surrounds the Earth?
atmosphere
What is used to make glasses?
sand
What is the land between hills or mountains
valley
How much of the Earth's surface is water?
3/4
How much of the Earth's surface is land?
1/4
Which carries sound waves that help us hear?
air
Which do we use to wash our clothes and cars?
water
Give one body of water that has a high salt content.
ocean and sea
Give one body of water that has a low salt content.
rivers, lakes, ponds
Which is a type of land that is higher than a hill?
mountain
Which is low-raised land that has slopes on the side?
hill
What are the flat type of land?
plain
What is the gas in air that helps us breathe?
oxygen
What is the gas in air that helps plants make food?
carbon dioxide
Which is used for making pots and vases?
clay
Which includes animals, plants, and humans?
living things
