Across
- 3. an example of a substance used to quicken reactions
- 5. on the right side of the arrow on a chemical equation
- 6. diatomic elements can also be classified as this
- 7. dry ice is one of the only things that can go through this process
- 10. you can speed this us by adding heat energy
- 12. _____ to liquid is condensation
- 15. the water on the mirror after a hot shower
- 18. the process that happens when substances react
- 21. the type of atoms that oxygen, hydrogen and nitrogen are made up of
- 23. the letter 'j' does not appear on the __________
- 25. there are only two elements in the first _____
- 28. orange juice is an example of a _____
- 29. water does this at 100 degrees celsius
Down
- 1. a water _____ is made up of two hydrogen atoms and one oxygen atom
- 2. looks like the beads on a necklace
- 4. sugar is a type of __________
- 8. when the lake becomes a large cloud
- 9. this is released when petrol vaporises
- 10. water is an example of a molecular _____
- 11. iron undergoes_____ when exposed to oxygen for a long period of time
- 13. these are present in metals or in other crystalline solids
- 14. when your ice cream is left out of the fridge for too long
- 16. curium was an _____ named after Marie and Pierre Curie
- 17. cooking oil is not a _____ liquid and does not evaporate easily
- 19. transition metals take up 10 _____
- 20. made of sub-atomic particles
- 22. neon and helium is a type of _____ gas
- 24. atoms being held together
- 26. on the left side of the arrow on a chemical equation
- 27. when added to a chemical reaction quickens the reaction