Term One

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Across
  1. 1. Used when writing chemical equations
  2. 7. The name given to the plates that make up the crust
  3. 8. A metal that bonds with carbon and oxygen. Also known as marble
  4. 9. The symbol for lithium
  5. 10. The variable that is measured when carrying out an experiment
  6. 11. Protons and neutrons combined
  7. 13. A type of plate interaction where one plate moves under another
  8. 15. A type of compound that forms when a positive ion and a negative ion combine in a reaction
  9. 17. Frozen carbon dioxide
  10. 18. Part of an experiment where you analyse what worked and what could be improved on
  11. 19. The center of the Earth
  12. 21. Types of circular currents that occur when hot molten rises, cools, falls causing the crust to move
  13. 23. Evidence of plant and animal matter preserved in rocks
Down
  1. 2. Colour of light given off when magnesium reacts with oxygen
  2. 3. A feature that might appear near plate boundaries
  3. 4. The type of table used to show all the elements that exist
  4. 5. A process where rocks are broken down by physical or chemical means
  5. 6. Evidence of a gas produced during a chemical reaction
  6. 12. The number of protons in an atom
  7. 14. A positive subatomic particle found inside the nucleus of atoms
  8. 16. Another word for a chemical that is added in a reaction
  9. 18. Negative subatomic particles that orbit the nucleus of atoms
  10. 20. An atom that has lost or gained electrons
  11. 22. A neutral subatomic particle found inside the nucleus of atoms
  12. 24. One example of a state of matter