Chemistry Crossword

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Across
  1. 2. To divide something using a sharp tool.
  2. 3. The smallest unit of matter.
  3. 8. A tiny piece that makes up matter.
  4. 10. A hot, charged state of matter found in stars and lightning.
  5. 13. The new substance made in a chemical reaction.
  6. 14. When a solid turns into a liquid.
  7. 18. A chemical change involving oxygen (like rusting).
  8. 19. To change the shape of something without breaking it.
  9. 20. Two or more substances combined without bonding.
  10. 21. When substances change to make something new.
  11. 26. When gas changes into a liquid.
  12. 27. A state of matter with a fixed shape and volume.
  13. 29. The path where electrons move around the nucleus.
  14. 30. When a liquid becomes a gas quickly by heating.
  15. 31. A chemical reaction where simpler substances form a more complex one.
  16. 33. The centre of an atom containing protons and neutrons.
  17. 34. A negatively charged particle that orbits the nucleus.
  18. 35. A positively charged particle in the nucleus.
  19. 38. To take substances apart.
Down
  1. 1. A chemical reaction that breaks a compound into simpler parts.
  2. 2. A chemical reaction that involves burning.
  3. 4. Two or more atoms joined together.
  4. 5. A substance made of different types of atoms bonded together.
  5. 6. When a solid mixes into a liquid to form a solution.
  6. 7. When a liquid slowly changes into a gas.
  7. 9. A chemical change where oxygen is removed.
  8. 11. When a solid turns straight into a gas.
  9. 12. To combine two or more substances.
  10. 15. A state of matter that flows and takes the shape of its container.
  11. 16. An atom that has gained or lost electrons and has a charge.
  12. 17. To press something until it breaks or loses shape.
  13. 19. When atoms join together.
  14. 22. The slow breakdown of metals (like rust).
  15. 23. How much mass is in a certain volume.
  16. 24. A state of matter that spreads out to fill any space.
  17. 25. The form or outline of an object.
  18. 28. A substance made of only one kind of atom.
  19. 32. A particle with no charge found in the nucleus.
  20. 36. The starting substances in a chemical reaction.
  21. 37. When a liquid becomes a solid.