Created by Science Teachers
Unit 4 Lesson 4-5
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Changes Time Forces Agents
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1,2
Build up ofland formations
What are constructive forces?
Row 1, Col 1
The carrying away of materials from one
place to another
What is erosion?
1,3
Breakdown ofland formations
What are destructive forces?
1,4
A natural structure onon the Earth’s surface
(ex. mountain, valley, plain, plateau…)
What is a landform?
2,1
Deep valleys with steep sides created
by rivers
What is a canyon?
2,2
An area of land at the mouth of a river where
deposits of eroded materials have been
built up
What is a delta?
2,3
How water continuouslymoves between the ocean, the sky, and
the land
What is a water cycle?
2,4
A landform with a steep slope and a high peak
What is a mountain?
3,1
An area where sand meets the sea and/or
lake
What is a beach?
3,2
U and V shapedlow areas of land
What is a valley?
3,3
High, steep, or overhanging face of rock
What is a cliff?
3,4
The breaking downand wearing away of
rock material
What is weathering?
4,1
A hollow or naturalpassage under the Earth
What is a cave?
4,2
A mountain built up fromhardened lava and rockthat have erupted out
of the Earth
What is a volcano?
4,3
Flat land found farabove sea level
What is a plateau?
4,4
A large body of movingice
What is a glacier?
5,1
Continental drift; Movement of the
Earth’s crust
What is plate tectonics?