physical science

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Across
  1. 1. direct contact
  2. 2. increasing
  3. 8. chemical reaction in which energy is primarily given off
  4. 10. energy of motion
  5. 12. transfer of heat as a result of moving currents
  6. 14. anything that has mass and takes up space
  7. 15. total energy of motion and position
  8. 16. molecules in a sample of matter
  9. 18. energy from the sun
Down
  1. 1. fossil fuel
  2. 2. describes a reaction that absorbs energy
  3. 3. energy stored due to an objects position
  4. 4. energy electrically charged particles moving
  5. 5. ability to cause change
  6. 6. shrink or become smaller
  7. 7. chemical reaction that absorbs energy from surrondings
  8. 9. nonrenewable energy source
  9. 11. occurring raw material
  10. 13. energy stored in chemical bonds
  11. 17. movement of thermal energy from a substance