Year 8 Science - Rocks - A RESEARCH ASSIGNMENT

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Across
  1. 3. An intrusive rock that is hard due to its many years of developing crystals
  2. 5. Main component of rock
  3. 7. Formed from grains of sand cemented together over time. Also found in the desert in Minecraft.
  4. 9. A rock that can float on water due to its porous surface
  5. 10. Formed from pre-existing rocks changed by heat/pressure
  6. 12. Rock. Also called stone in Minecraft
  7. 13. Main component of mineral
  8. 14. Prehistoric reptile-like animals that roamed the Earth far before humans did
  9. 16. How minerals break into flat surfaces determined by their crystal construction
  10. 18. An intact form of an ancient plant/animal preserved in rock/tree sap
  11. 19. A mineral consisting of silica that is found in sandstone, the nether, and granite
Down
  1. 1. Molten rock
  2. 2. The study of rocks
  3. 4. Forms of life that are no longer alive to this day
  4. 6. Igneous rock formed when lava cools below the surface (not interior)
  5. 7. Pieces of rock cemented together with great force
  6. 8. Environmental damage to an object (i.e. water, heat, wind, etc)
  7. 11. Igneous rock formed when lava cools above the surface (not exterior)
  8. 15. Formed from cooling of magma via being yeeted/emitted across the air
  9. 17. Appearance of mineral caused by how it reflects light