Physical and Chemical Changes

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Across
  1. 2. When heated at 100 C it can cause vapour
  2. 5. Made of sub-atomic particles
  3. 6. Something that is prone to become a gas
  4. 8. A gaseous form a liquid which has evaporated due to being in room temperature
  5. 9. When metal begins rust
  6. 11. A type of catalyst that helps create chemical reactions
  7. 13. Substances that are bond together by different atoms
  8. 15. When heated at a certain temperature, a solid could turn into a liquid
  9. 17. A substance that can make things go faster by increasing the rate of a chemical reaction
  10. 22. A substance that only consists of one type of atom
  11. 23. The beginning of a chemical reaction which is seen on the left side
  12. 25. A combination of two atoms that form together
  13. 27. The horizontal row of the periodic table
  14. 28. A molecule that consists of only two atoms
  15. 29. A vapor or gas that has a stench
Down
  1. 1. A huge chain that consists of molecule substances
  2. 3. An arrangement of particles that turns it into a regular pattern
  3. 4. Just one atom
  4. 7. When two atoms that are the same element are bond together
  5. 9. The amount of pressure put into a particle
  6. 10. When gas changes into liquid due to the temperature change
  7. 12. When a solid turns into a gas or a gas turns into a solid
  8. 14. When two different atoms bond together
  9. 16. When a liquid undergoes chemical change that makes it gas
  10. 18. You can speed this up by adding heat energy
  11. 19. When two atoms are attracted towards each other by force
  12. 20. A classification system that classifies atoms by atomic mass
  13. 21. When substances react to energy and start colliding forming a more kinetic energy
  14. 24. When something is classified to its own section
  15. 26. The after-mat of a reactant which is seen on the right side