MDJH Grade Seven Science Chapter 11

Inner Core

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Terms in this set (15)

central part of the Earth, probably solid and formed mostly of the metals iron and nickel.

Image: Inner Core

Second layer of the earth from the centre, probably liquid and formed mostly of molten iron and nickel.

Image: Outer Core

third layer of the earth from the centre, formed of semi-liquid magma.

Image: Mantle

surface layer of the Earth, formed of solid rocks.

Image: Crust

Plate Tectonics

a theory that states that the crust of the Earth is formed of rock plates floating and moving slowly on the magma of the mantle.

Image: Plate Tectonics

a large section of the Earth's crust.

Image: Plate

two plates moving towards each other.

Image: Convergent

two plates moving away from each other.

Image: Divergent

two plates sliding against each other..

Convection Current

circular movement in a fluid, caused when hotter, less dense fluid floats up while colder, denser fluid sinks down.

Image: Convection Current

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