HW 2

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Across
  1. 2. The smallest unit of matter
  2. 3. Negatively charged particles
  3. 7. Simplest chemical substance that cannot be changed by any chemical reaction.
  4. 9. What is the matter that has definite shape and size
  5. 11. It happens when gas is transforms into a liquid
  6. 12. Positively charged particles
  7. 14. It is composed of tightly packed particles
  8. 15. The amount of matter present in an object
  9. 17. Occurs when heat is applied to a solid
  10. 19. An electrically neutral subatomic particle of an atom
  11. 20. Combination of atoms
Down
  1. 1. Anything that has mass and takes up space
  2. 4. Substance that made from two or more elements
  3. 5. Mixture of two or more substances
  4. 6. Has indefinite shape and volume
  5. 8. Describe how big or small is an object
  6. 10. Process of converting liquid to gas
  7. 13. Consist of highly charged particles with extremely high kinetic energy
  8. 16. Amount of space occupied by matter
  9. 18. It is the ability of materials to be easily broken down into pieces