Across
- 2. A simple machine which consists of three parts; load, effort and fulcrum
- 7. A device used to measure voltage
- 9. A substance that dissolves a solute
- 10. A device used to measure current
- 12. A form of energy that flows from hotter regions to colder regions
- 13. A class of food that is essential for cellular growth and repairing of tissues
- 14. The ability of our body to fight a pathogen infection
Down
- 1. A cloud of hydrogen gas and dust
- 3. Sound waves with frequency more than 20 000 Hz
- 4. A fixed turning point in a lever which is also known as a pivot
- 5. A process by which water changes into water vapour at any temperature.
- 6. The degree of hotness or coldness of a substance
- 8. A push or pull that is exerted on an object
- 11. A pathway of a celestial object around other objects in space due to their gravitational force