Rocks Revision

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  • ROCKS!
  • Weathering
    • ROCKS!
    • Biological
      • The effect of living organisms
    • Physical
      • The effect of changing temperatures
  • Chemical
    • Weathering
      • Biological
        • The effect of living organisms
      • Physical
        • The effect of changing temperatures
    • The effect of rainwater reacting with the minerals in the rocks
  • Cement- a substance that can bind rocks
    • Rock types
      • Basalt- an extrusive igneous rock
  • Chalk- fine grained soft white rock
    • Rock types
      • Basalt- an extrusive igneous rock
  • Crystal- a solid with regular geometrical shape and flat crystal faces
    • Fossils- remains or traces of animals and plants preserved in rock
      • Gneiss- a metamorphic rock formed from schist/granite
        • Granite- an intrusive igneous rock that is formed slowly underground
          • Limestone- sedimentary rock, mostly calcium carbonate
            • Magma- the molten rock from which igneous rocks are formed
              • Marble- a metamorphic rock formed from limestone
                • Sandstone- a sedimentary rock made of sand grains cemented together
                  • Igneous rocks
                    • Igneous rocks are formed when magma cools and solidifies, either on the earths surface or below the earths crust.
                      • Igneous rocks
                      • The two most common igneous rocks are Granite (intrusive rock) and Basalt (extrusive rock)
                        • Sandstone- made from grains of sand
                          • Sedimentary rocks
                            • Small particles cemented together
                            • Separate grains, different layers
                        • Mudstone- made from mud
                          • Sedimentary rocks
                            • Small particles cemented together
                            • Separate grains, different layers
                        • Limestone/chalk- made from shells
                          • Conglomerate- made from gravel

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