Across
- 2. a type of energy
- 5. an equipment use to masseur the pressure
- 6. an instrument which use to find direction
- 7. substance in the gas state
- 9. react with acids and produce hydrogen gas
- 11. subatomic particle with negative elementary electric charge
- 12. energy that flows from a high temperature body to a low temperature body
- 13. a type of polymer used to make non-stick pans
Down
- 1. allows current to flow in one direction
- 3. water in solid state
- 4. an apparatus for reducing or increasing voltage of alternating current
- 6. a flow of electron due to a potential different
- 8. positive particle of matter that is part of the nucleus of an atom
- 10. an arrangement of numbers in a pattern used for solving mathematical problems