rocks

• Types of Rock


  • Igneous
  • Metamorphic
  • Sedimentary
• Igneous


  Frozen molten rock
• Metamorphic


  • Interlocking crystals
  • Compressed rock (pressure and high temperature)
• Sedimentary


  Layers of broken rocks and grains (classic, biological and chemical)
• How Igneous rock is formed

  Molten rock cools down and it freezes
• How Metamorphic rock is formed

  Pressure and high temperatures
• How Sedimentary rock is formed

  Erosion and weathering
• Igneous


  • Porous
  • Hard or soft
  • Does it have layers
• Metamorphic


  • Not Porous
  • Hard
  • No layers
• Sedimentary


  • Porous
  • Soft
  • Layers
• Igneous


  • Granite
  • Pumice
  • Obsidian
• Metamorphic


  • Slate
  • Marble
• Sedimentary


  • Sandstone
  • Mudstone
  • Limestone
• Igneous is derived from ignis, which is fire in latin
• Marble is made from limestone and chalk
• Sedimentary rock can be found on other planets e.g Mars
• Igneous rock called pumice is the lightest rock on earth
• Three types of Rock

  • Igneous
  • Metamorphic
  • Sedimentary