Rocks and mountains

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Across
  1. 2. this rock has remains of animals and plants
  2. 5. it means 'changing form'
  3. 7. a name given to a super continent
  4. 8. Layer of the Earth above the mantle
  5. 9. this layer has a thickness of 2900km
Down
  1. 1. type of sedimentary rock used for burning
  2. 3. the name given to molten rock from volcanos
  3. 4. all rocks have them
  4. 6. the hottest layer of the eart gemstones expensive, colourful stones used to make