Don't show this to Mr. Law

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Across
  1. 3. letters and numbers showing the number and type of atoms that repeat to make up a substance
  2. 6. an ending substance that is created during a chemical reaction
  3. 9. a process in which atoms rearrange to form new substances
  4. 12. Mr. Law, who is very handsome, should be a _____ for his rope climbing gym
  5. 13. a starting substance that is part of a chemical reaction
Down
  1. 1. contrary to popular belief, atoms do not get yeeted during a chemical reaction, but they do get ______________
  2. 2. something that is made of all the same atoms or groups of atoms
  3. 4. we know if substances are different if they have different _______
  4. 5. something that can be observed about a substance, such as texture, resistance to breakage, or color
  5. 7. Mr. Scott and his wife own their home, which means they own a piece of ________
  6. 8. the parts of a substance that rearrange to make a new substance in a chemical reaction
  7. 10. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
  8. 11. you know those dumb YouTube channels where someone just sits there watching someone else content and reacts to it? Well there's this NEW react YouTube channel I found but it's hosted by a nest of ants. Can you guess what the channel is named? It's ______.