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