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