Show:
Slow Changes
Landforms
Fast Changes
Natural Resources
Soil
100
The breaking down of rocks into tiny pieces.
What is weathering.
100
The lowland between mountains.
What is a valley.
100
The sudden movement of the earth's crust.
What is an earthquake.
100
A resource that cannot be replenished again in a human lifetime.
What is a nonrenewable resource.
100
True or False: Soil is a mixture of dead plants and animals, water, rock and plastic.
What is false.
200
The carrying away of weathered material from one place to another.
What is erosion.
200
A landform that pokes way into the sky.
What is a mountain.
200
A mountain with an opening that lets out material from deep inside the earth.
What is a volcano.
200
When you take an item and use it to make new things.
What is recycle.
200
True or False: There are many types of soil.
What is true.
300
Large frozen rivers of ice that scrape the land they pass over.
What is a glacier.
300
A short and rounded rise in land.
What is a hill.
300
This happens when rocks and mud slides down a hill.
What is a landslide.
300
A tree is an example of a __________.
What is a renewable resource.
300
Loose material that covers Earth's surface
What is soil.
400
These cause rocks to break as they spread out in the cracks.
What are roots.
400
A flat landform that is not higher than the land around it.
What is a plain.
400
The material that is inside a volcano that is turned into lava when it reaches the earth's surface.
What is magma.
400
Materials in nature that people can use are called ___________.
What are natural resources.
400
The top layer of soil is called ___________.
What is topsoil.
500
This means to take up space or to get bigger.
What is expand.
500
True or false: There are only 6 types of landforms.
What is false.
500
This washes away soil in one place and drops it somewhere else.
What is a flood.
500
True or False: Turning off the lights when you leave the room is conserving electricity.
What is true.
500
Broken down parts of plants and animals.
What is humus.