Classroom visuals
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![Granite Pebbles]()
Granite Pebbles
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![Lava]()
Lava
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![Earth Cross Section]()
Earth Cross Section
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![Liquid Iron]()
Liquid Iron
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![Jurassic Earth]()
Jurassic Earth
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![Lava flow]()
Lava flow
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![Mountain Peak]()
Mountain Peak
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![Amethyst]()
Amethyst
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![Rubies]()
Rubies
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![Marble Statue]()
Marble Statue
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![Chalk]()
Chalk
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Constructive, Destructive and Conservative Boundaries (labelled)
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Constructive, Destructive and Conservative Boundaries (unlabelled)
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Geological Timescale
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Rock Cycle (labelled)
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Rock Cycle (unlabelled)
Film info
Film summary
Rocks are constantly on the move. Eroded by water, sinking into the sea, and ejected by volcanoes, rocks have their very own cycle of existence.Key facts
- The rock cycle is the process of rocks weathering away and creating new rocks.
- Over time weathering reduces rock to tiny grains of sand.
- The wind transports the sand, which builds up on seabeds and eventually becomes sedimentary rocks.
- Deep in the Earth, high pressure and temperature melt rocks into magma which is produced during volcanic eruptions.
Transcript
This ordinary looking rock, found in northern Canada in 2008, is the oldest ever found on Earth.
It contains minerals dating back over 4 billion years.
Most rocks on Earth are a lot younger.
Because Earth's natural processes are constantly breaking down existing rocks and creating new ones.
This is the rock cycle.
Rock Cycle
Over …
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