Grade 10 Science: What do you remember from before?

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Across
  1. 2. The subatomic particle with a positive charge.
  2. 6. The element with the symbol Fe.
  3. 7. When gas turns into a liquid.
  4. 12. This piece of equipment 🧪
  5. 14. The Family of Elements containing He, Ne, and Ar.
  6. 15. The element with the symbol Mg.
  7. 17. The safety symbol ☣️
  8. 18. The subatomic particle with a negative charge.
Down
  1. 1. Toast burning is an example of a _?_ change.
  2. 3. The subatomic particle with NO charge.
  3. 4. Carbon dioxide, water and sugar are examples of …
  4. 5. A bond made from a metal and a non metal.
  5. 8. H2O is also known as?
  6. 9. The element with the atomic mass 39.1 amu.
  7. 10. Ice melting is an example of a _?_ change.
  8. 11. The safety symbol☠️.
  9. 13. The centre to the atom.
  10. 16. The element with the atomic number 12.