Landforms
Earth
Volcanoes
Earthquakes
Erosion
100
A large body of saltwater that surrounds continents.
What is an ocean?
100
3/4 of the earth's surface is covered with this.
What is water?
100
Mountains formed by hardened lava with an opening that lava, ash and rock come out of.
What is a volcano?
100
The earth is made up of long sections called...
What are plates?
100
The moving of weathered rocks and soil.
What is erosion?
200
A low place between mountains, usually containing a river.
What is a valley?
200
1/4 of the earth's surface is covered with this.
What is land?
200
Liquid rock inside a volcano.
What is magma?
200
When a rock moves along a crack, it's called...
What is a fault?
200
It can happen by movement of wind, water and ice.
What is erosion?
300
Water that flows across the land and usually empties into the sea or ocean.
What is a river?
300
The earth's surface is always doing this.
What is changing?
300
When magma comes out of a volcano.
What is lava?
300
When rocks move along a crack, the ground shakes, causing an...
What is an earthquake?
300
It can build new land, but it can also wash away fertile soil.
What is erosion?
400
A hill of loose sand.
What is a dune?
400
The two center layers of the earth.
What are the inner core and outer core?
400
When a volcano is sleeping, it is called this.
What is a dormant volcano?
400
These objects are always moving and sometimes the movement causes cracks in the earth's crust.
What are plates?
400
Planting cover crops or planting trees on steep hills to hold soil in place.
What is erosion control?
500
A narrow strip of land that lies between two bodies of water and connects two larger land masses.
What is an isthmus?
500
The two outer layers of the earth.
What are the crust and mantle?
500
When an eruption destroys a part of the volcano.
What is a violent eruption?
500
Many earthquakes happen in this state of the USA.
What is California?
500
Plowing farm fields in rows and hills to stop water from running down hills.
What is erosion control?
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