A new year, a new crossword *dabs into 2023*

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Across
  1. 5. the tiny pieces that all matter—all the stuff in the world—is made of
  2. 6. (2 words) where we could see atoms and molecules
  3. 8. (2 words)
  4. 10. a starting substance that is part of a chemical reaction
  5. 13. this law tells us atoms cannot be created or destroyed
  6. 14. something that can be observed about a substance, such as color, smell, or boiling point
  7. 15. to change the order or position of something
Down
  1. 1. where we can see substances and their properties
  2. 2. an ending substance that is made during a chemical reaction
  3. 3. the relative size of things
  4. 4. (2 words) the answer to life, the universe, and everything
  5. 7. (2 words) the worst type of candy to get on Halloween
  6. 9. something that is made of all the same atoms or groups of atoms
  7. 11. a group of atoms joined together in a particular way
  8. 12. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see