Across
- 4. energy that is not causing any changes now but could cause changes in the future
 - 8. circuit a circular path through which electricity can flow
 - 10. describes materials that let some light pass through, but not all
 - 11. describes materials that do not let any light pass through them
 - 12. the back-and-forth motion of an object
 - 13. a material through which an electric charge cannot move easily
 - 14. a material through which an electric charge can move easily
 
Down
- 1. energy due to motion
 - 2. describes materials that let nearly all light pass through them
 - 3. bending of light
 - 5. light bouncing off an object
 - 6. the ability to do work or cause change
 - 7. a strong resistor that can stop most electric currents
 - 9. to change from one form into another
 
