Physical Science

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. A stable particle with positive charge equal to the negative charge of an electron (6)
  2. 5. A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (5)
  3. 7. A material's opposition to the flow of electric current (10)
  4. 10. Bottom part something stands on; a safe spot in baseball (4)
  5. 11. A unit of electrical energy equal to the work done when a current of one ampere passes through (plural) (6)
  6. 12. A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion (6)
  7. 13. A substance consisting of two or more substances mixed together (7)
  8. 15. An elementary particle with 0 charge and mass about equal to a proton (7)
  9. 16. A push or a pull (5)

Down

  1. 1. Hopeful and optimistic; the opposite of negative (8)
  2. 3. Any of various water-soluble compounds having a sour taste and capable of turning litmus red (4)
  3. 4. A piece of photographic film showing an image with light and shade or colors reversed (8)
  4. 6. An abstract part of something (7)
  5. 8. The smallest component of an element having the chemical properties of the element (4)
  6. 9. An elementary particle with negative charge (8)
  7. 14. A simple machine consisting of a wheel with a groove in which a rope can run to change (6)