Chemistry revision

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Across
  1. 4. A three-legged piece of apparatus used for support during heating
  2. 6. The yellow Bunsen burner flame used when not heating
  3. 7. An experimental technique used to separate an insoluble solid from a liquid
  4. 9. The process where particles spread out, such as in gases
  5. 11. The starting substances in a chemical reaction that are conserved into products
  6. 13. The classification for a solution with a pH of exactly 7
  7. 17. A yellow non-metal that can be recognised by its physical appearance
  8. 18. A metal that can be recognised by its physical appearance
  9. 19. The likelihood that a hazard will cause harm
  10. 20. The variable that is predetermined in a scientific experiment
Down
  1. 1. A potential source of harm or danger in the laboratory
  2. 2. A substance formed when two or more elements chemically combine
  3. 3. The random movement of particles observed in fluids
  4. 5. A scientific unit for measuring temperature
  5. 8. The blue Bunsen burner flame used for intense heating
  6. 10. A gas that can be identified by a specific chemical test
  7. 12. An experimental technique used to recover a solid from a solution
  8. 14. A term used to describe the fundamental particles of matter
  9. 15. A term for a group of atoms bonded together
  10. 16. A technique used to separate and investigate mixtures like inks