Chapter 2 and 3 vocab

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Across
  1. 3. a change in which a system absorbs energy from its surroundings
  2. 6. change that occurs when a substance reacts and forms one or more new substances
  3. 8. -matter that always has exactly the same composition
  4. 11. a process that separates materials based on the size of their particles
  5. 13. a change that occurs when some properties of a material change, but the substances in the material stay the same
  6. 14. the ability of a solid to be flattened without shattering
  7. 16. a substance that is made from two or more simpler substances that are chemically combined in a specific ratio
  8. 17. a type of mixture in which the parts of the mixture are noticeably different from one another
  9. 20. the state of matter that has neither a definite shape nor a definite volume
  10. 21. the smallest particle of an element
  11. 22. the state of matter that has a definite shape and definite volume
  12. 23. a material’s ability to burn in the presence of oxygen
  13. 25. a material’s ability to allow heat or electric charges to flow
  14. 27. the ability to produce a change in the composition of matter
Down
  1. 1. a homogeneous mixture that is transparent and forms when substances dissolve
  2. 2. any characteristic of a material that can be observed or measured without changing the composition of the substance
  3. 4. a change in which a system releases energy to its surroundings
  4. 5. the phase change in which a substance changes from a liquid into a gas or vapor
  5. 7. the phase change in which a gas changes directly into a solid without first changing into a liquid
  6. 8. a reversible physical change that occurs when a substance changes from one state of matter to another
  7. 9. a homogeneous mixture that is opaque
  8. 10. a heterogeneous mixture that separates into layers over time
  9. 12. a substance that cannot be broken down into simpler substances
  10. 15. a type of mixture in which the substances are evenly distributed and it looks like a single substance
  11. 18. the phase change in which a substance changes from a solid directly to a gas without changing to a liquid first
  12. 19. the process that changes a substance from a liquid to a gas at temperatures below the substance’s boiling point
  13. 24. the state of matter in that has a definite volume but not a definite shape
  14. 26. the phase change from a gas to a liquid