key terms
lesson 1
lesson 2
lesson 3
random
100

the outside layer that is made out of rock is called ?

crust 

100

which is the hottest layer of the earth?

core 



100

true or false : magma is found in Earth's core 

false: in the mantle

100
true or false: plants roots cause eroision

 false: weathering  

100

the movement of broken rocks and Earth materials 

erosion 

200

the act of breaking big rocks into little rocks over time 

weathering 

200

a low, narrow area

valley

200

a volcano opening is present in what layer of the earth?

crust 

200

what kind of water makes it expand and crack rocks 

freezing 

200

rainwater causes soil loss by ______

erosion 

300

hot melted rock that pushes up towards earths surface because it is full of gases

magma 

300

a large, mostly flat area

plain

300

True or false : when lava cools it becomes sedimentary rock

false: igneous rock

300

true or false: landforms never change 

false: always 

300

a land next to the ocean

coast

400
mountains, hills, valleys and beaches are examples of ?

landforms 

400

name the three layers of the earth 

crust, mantle and core 

400

Earthquake vibrations travel as __________

waves

400

in dry areas like deserts _______causes most of the erosion

wind

400

a high place

hill

500

when a volcano erupts, melted rock called ___________ is forced out

lava

500

_______solid features on earth's crust 

landforms 

500

hot melted rock from under the ground

magma

500

a mudflow is caused by ?

gravity 


500

true or false : magma collects underground in magma chambers 

true 

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