Physical Science

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. Any of various water-soluble compounds having a sour taste and capable of turning litmus red (4)
  2. 5. A substance formed by chemical union of two or more elements or ingredients in definite proportion (8)
  3. 6. Any process determined by the atomic and molecular composition and structure of the substances (14)
  4. 9. The order of an element in Mendeleyev's table of the elements (12)
  5. 10. The maximum displacement of a periodic wave (9)
  6. 11. When light passes sharp edges or goes through narrow slits the rays are deflected and produce (11)
  7. 12. The transmission of heat or electricity or sound (10)
  8. 13. The process of becoming a vapor (11)
  9. 14. A former unit of electric current (6)

Down

  1. 1. An increase in rate of change (12)
  2. 3. The transfer of heat through a fluid caused by molecular motion (10)
  3. 4. Swedish astronomer who devised the centigrade thermometer (7)
  4. 7. The strength of a solution (13)
  5. 8. The lowest temperature theoretically attainable (12)
  6. 10. The smallest component of an element having the chemical properties of the element (4)
  7. 12. A material that allows heat or electric current to pass through it. (9)