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Name: _________Key__________
Block: ___________________
Date: ____________________
Earth’s Layers/Plate Tectonics Test Review
14.) What are the 6 layers of the Earth?
1. __Inner Core___________
2. ___Outer Core__________________
3. ____Mantle_________________
4. ____Asthenosphere_________________
5. ____Lithosphere_________________
6. _____Crust________________
15.) List 2 properties of each layer of the Earth.
Layer: _Inner Core_____________
1.) __Solid
Iron (Fe) and Nickel (Ni)________________________
2.) ___6,000 degrees Celsius 1,250km thick_________________
Layer: __Outer Core______________
1.) __Liquid Iron (Fe) and Nickel (Ni)___________________________
2.) __4,000 to 5,000 degrees Celsius 2,200 km thick____________
Layer: _Mantle_______________
1.) __Iron (Fe) and Magnesium (Mg),
2.) _2,800-3,200 degrees Celsius and 2,900km thick________
Layer: __Asthenosphere______________
1.) __Semisolid______________________________________________________
2.) __Plasticity______________________________________________________
Layer: _Crust_______________
1.) _Solid, Thinnest layer, coolest temperature___________
2.) __Oxygen (O2) and Silicon (Si)and Aluminum (Al)______________________
Layer: _Lithoshpere_______________
1.) __Solid______________________________________________________
2.) __Made of crust and upper mantle_______________________________
16.) Which layers of the Earth are solid?
Inner Core, Crust, Lithosphere
17.) Which layers of the Earth are liquid?
Outer Core
18.) Which layers of the Earth are solid that flow like liquids?
Asthenosphere, Mantle
19.) Which layer of the Earth do we live on?
Crust
20.) What are the 8 major tectonic plates we discussed in class?
North American, South American, Indo-Australian, Eurasian, Antarctic, Pacific
Nazca, African
21.) What is the name of the plate boundary in which the plates are moving away from each other?
Divergent, result is ridges & rift valleys
22.) What is the name of the plate boundary in which the plates are sliding past each other?
Transform, result is earthquakes
23.) What is the name of the plate boundary in which the plates are moving toward each other?
Convergent, result is mountain building and volcanoes
24.) Explain the Theory of Plate Tectonics
Earth’s crust is broken into pieces called plates. Those plates move around on the
asthenosphere due to convection currents in the mantle.
25.) Know the definitions of the following:
a. Mountain Building – uplift of convergent boundaries
b. Earthquake – Movement of crust at plate boundaries
c. Subduction – more dense plate going beneath less dense plate
d. Volcanic Eruptions – lava flow at convergent boundaries
e. Ocean Basins – oceanic crust covered by sea water and surrounded by continental crust