Air & Natural Resources
What is soil?
Rocks and Minerals
What covers Earth?
Other questions.
100
Air is a natural resource. True or False?
True
100
It is the loose top layer of Earth.
What is soil?
100
What is a mineral?
It is a nonliving thing found in nature.
100
What is a natural resource?
Something from Earth that people use such as air, land and water.
100
Which 2 things can change Earth’s surface quickly?
earthquakes and volcanoes
200
What three things need air to stay alive?
People, plants, and animals
200
What is soil made of?
Bits of minerals and rock, dead plants, and dead animals
200
Different rocks have different minerals in them. True or false?
True. That is why they are different colors.
200
Ocean water is not salty. True or false?
False. Ocean water is salty, fresh water is not salty.
200
A ________________ is a place where hot melted rock called lava comes out of the ground onto Earth’s surface.
volcano
300
This happens when harmful things get into the air.
What is air pollution?
300
What is humus?
bits of dead plants and animals
300
These are very large rocks. What are they called?
What is a boulder?
300
How is lake water different from ocean water?
Lake water is fresh water ad ocean water is salty.
300
Three types of rocks are igneous, sedimentary, and metamorphic. a. true b. false
True.
400
A broom is a natural resource. True or False
False
400
After weathering occurs, what is left over from the rocks that have been broken down?
soil
400
Talc, graphite, and gold: Hard or soft minerals?
Soft minerals. People use them for powder, pencils, and medals.
400
Earth's land and air are natural resources. People use soil for what?
To grow plants. They use trees to make paper, furniture, and buildings. People use air to breathe.
400
When wind or moving water moves sand or small rocks, _____________ occurs.
erosion
500
Explain why a plant is a natural resource.
It is from nature that people can use.
500
What causes soil to go away?
Water and wind can take soil away. One way to save soil is to grow plants. The plant roots help hold soil in place.
500
What do people use hard rocks for?
Buildings, statutes, and bridges.
500
How are water and land resources different?
People use water to swim and play. They wash, clean, and drink water. With land, people use soil to grow plants. Trees make paper, furniture, and buildings. People use rocks to make statues and buildings. They melt sand to make glass.
500
What are four things that are made from plants? There are many answers..
Cotton to make clothes, seeds of plants like oats and rice, tables from trees, and carrots/potatoes from the roots of plants.
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