Across
- 2. A form of energy that flows from hotter regions to colder regions
- 4. Sound waves with frequency more than 20 000 Hz
- 8. The maximum displacement of wave measured from its equilibrium
- 9. The value of a measured quantity
- 10. The ability of our body to fight a pathogen infection
- 12. A pathway of a celestial object around other objects in space due to their
- 13. A substance that dissolves a solute
Down
- 1. A process by which water changes into water vapour at any temperature.
- 3. force
- 5. A simple machine which consists of three parts: load, effort and fulcrum
- 6. A class of food that is essential for cellular growth and repairing of
- 7. A device used to measure voltage
- 11. A cloud of hydrogen gas and dust