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Ks3 All Around Us Key Words

Date : 28/02/2021

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Uploaded by : Tamzin
Uploaded on : 28/02/2021
Subject : Chemistry

All Around Us

Atmosphere

The layers of gases that surround the Earth. The important gases in the atmosphere are nitrogen, oxygen and carbon dioxide.

Core

The core is the innermost part of the Earth.

Crust

The outer layer of the Earth on top of the mantle.

Crust (continental)

A thick part of the earth`s crust that contains large land masses.

Crust (oceanic)

A relatively thin part of the earth`s crust that contains large ocean basins.

Erosion

Movement of rock by water, ice or wind (transportation).

Global Warming

The rise in the average temperature of the Earth`s surface.

Greenhouse Effect

The retention of heat in the atmosphere caused by the build-up of greenhouse gases.

Igneous Rocks

Formed from cooled magma, with minerals arranged in crystals. Examples are granite, basalt and obsidian.

Mantle

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A zone of hot rock in the interior of the earth located between the outer crust and the molten core. It has the properties of a solid, although it can also flow, very slowly.

Metamorphic Rocks

Formed from existing rocks exposed to heat and pressure over a long time. Examples are marble, slate and schist.

Minerals

Chemicals that rocks are made from.

Pollutant

A substance that pollutes (damages) either water or the atmosphere.

Rock Cycle

Sequence of processes where rocks change from one type to another.

Sedimentary rocks

Formed from layers of sediment, and which can contain fossils. Examples are limestone, chalk and sandstone.

Strata

Layers of sedimentary rock.

Weathering

The wearing down of rock by physical, chemical or biological processes
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Ks3 All Around Us Key Words

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