The structure of the earth has a core and an inner core.
2 of 11
Earth
70% water
3 of 11
What are plates?
The earth's surface is made up of large plates like a jigsaw puzzle.
The ocean's floors are continually moving.
At the edges of these plates earthquakes and volcanoes occur.
Convention currents in the mantle move the plates.
4 of 11
Constructive Plate Boundary
2 plates move apart because of the convection current in the mantle beneath.
The 2 plates move apart and magma rise up to fill the gap.
This causes eruptions
5 of 11
Destructive Plate Boundaries
A destructive plate boundary is where the plates move together because of the mantle beneath.
6 of 11
Conservative plate boundary
The 2 plates slides past each other due to the convection current in the mantle.
7 of 11
Features of earthquakes
Focus, seismic waves, epicentre
8 of 11
Focus
The focus is the point of which the rock moves in the earth's crust.
9 of 11
Seismic waves
Start at the focus- they are waves of energy given out in an earthquake.
10 of 11
Epicentre
The Epicentre is directly above the focus at the earth's surface
11 of 11
Other cards in this set
Card 2
Front
Crust, Mantle, Core
Back
The structure of the earth has a core and an inner core.
Comments
No comments have yet been made