SCIENCE FORM 2

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