Crossword Puzzle: Chapter 1 - Matter

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Across
  1. 2. The transfer of energy from a faster-moving molecule to a slower-moving molecule.
  2. 4. The amount of space an object or substance takes up.
  3. 5. The amount of "stuff" or matter in an object.
  4. 8. The type of energy an object has due to its motion.
  5. 9. State of matter where molecules are very far apart and move freely.
  6. 11. The measure of the average kinetic energy of the atoms or molecules in a substance.
  7. 13. The smallest unit of an element.
  8. 14. State of matter where molecules are close together but can move past one another.
Down
  1. 1. The process where molecules slow down and move closer together due to cooling.
  2. 3. A tool used to measure the average kinetic energy of molecules.
  3. 5. Two or more atoms held together by a chemical bond.
  4. 6. State of matter where molecules are vibrating in a fixed position.
  5. 7. Anything that has mass and takes up space.
  6. 10. The "pull" that molecules have for one another.
  7. 12. The process where molecules move faster and slightly further apart due to heating.