7th Grade Unit 2 Review
Layers of the Earth (Students should be able to identify by diagram or definition)
Inner Core
Outer Core
Mesosphere
Asthenosphere
Lithosphere
Physical vs. Compositional layers
The compositional layers of the earth are the crust, mantle and core.
The physical layers are the lithosphere, asthenosphere, and mesosphere, outer and inner core
The Theory of Plate Tectonics
Plate Boundaries
The type of boundary, convergent, divergent, or transform
How are they different
What happens along these boundaries?
Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate
boundaries
Mantle Convection
Slab Pull
Slipping of Plates
Where are most divergent plate boundaries found?
Theory of Continental Drift
Earthquakes
Causes of Earthquakes
Directional wave motion of earthquakes
Mountains
Cause of Mountain formation
What could cause a mountain to increase in size within a short period of time?
How do tectonic forces build the following?
Folded Mountains
Fault Block
Volcanic
Volcanos
Formation of Volcanos
Parts of Volcano
Fissure
Water on Earth
Where is the majority of fresh water found on earth?
Water Cycle
Why does a certain percentage of water that falls to Earth’s surface as precipitation not immediately
return to the water cycle?
Melting
Freezing
Evaporation
Deposition
Sublimation
Water’s change of state
As water changes state from one form to another is energy absorbed or released
Example: Ice melting absorbed energy
Explain runoff and infiltration of land near an ocean