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Rocks are not what they seem. They are constantly changing. - PowerPoint PPT Presentation


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Rocks are not what they seem. They are constantly changing. . Changes can take millions of years. or happen very quickly . Find out what happens step by step by repeatedly clicking the mouse or pressing the enter key ………. Magma (molten rock).

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Presentation Transcript
slide1

Rocks are not what they seem.

They are constantly changing.

Changes can take millions of years

or happen very quickly.

Find out what happens step by stepby repeatedly clicking the mouse or pressing the enter key ………

magma molten rock
Magma(molten rock)

sediment is compacted (squashed) and particles get cemented

shells

limestone

mud

mudstone

Any rock can be weathered or eroded to mud or sand

sand

sandstone

heat and pressure

fast cooling

Igneous rock

marble

heat and pressure

slate

slow cooling

Sediment

Sedimentary rock

weathering and erosion

Metamorphic rock

basalt

small crystals

granite

large crystals

cooling and crystallisation (solidification)

very high temperatures causing melting

very hot!

slide3

Some changes are rapid eg landslides and volcanic eruptions

… but much of the cycle takes millions and millions of years!

Click here to run the Rock Cycle again automatically!

magma molten rock4
Magma(molten rock)

sediment is compacted (squashed) and particles get cemented

shells

limestone

mud

mudstone

Any rock can be weathered or eroded to mud or sand

sand

sandstone

heat and pressure

fast cooling

Igneous rock

marble

heat and pressure

slate

slow cooling

Sediment

Sedimentary rock

weathering and erosion

Metamorphic rock

basalt

small crystals

granite

large crystals

cooling and crystallisation (solidification)

very high temperatures causing melting

very hot!

references
References

Move back to any point in this presentation by using either the backspace or up arrow keys.

Peter Hollamby and Steve Lewisfor the Royal Society of Chemistry