Grade 3 Unit 5 Plate Tectonics

1
Plate Tectonics
Grade 5 Unit 4 Lesson 1
2
Topics Covered

• Parts of the earth
• Heat transfer and crustal plates
• Tectonic plates
• Divergent, Convergent, Transform Boundaries
• Hot spots

3
Lets Look Inside the Earth
Heat Transfers from Core to Mantle
Parts of the Earth
Parts of the Earth
heat transfer
oceanic crust
mantle
continental crust
inner core
outer core
4
Crustal Plates Move
oceanic crust
mantle
continental crust
inner core
outer core
5
Continental Oceanic Crust
CONTINENTALCRUST
OCEANIC CRUST
6
Tectonic Plates
Pacific Plate
Can you name the plate on which Hawaii is
located?
7
Divergent Plate Boundary
8
Divergent Plate Boundary
9
Convergent Plate Boundary
10
Convergent Plate Boundary
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Transform Plate Boundary
12
Transform Plate Boundary
13
Hot Spots
Oahu
Maui
Hawaii
Loihi
solid dense rock
hot spot
photo courtesy USGS
14
Two Hot Spot Theories
magma from a shallower depth
magma from the earths core
15
The End