Science

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Across
  1. 1. ________ of water is used to collect gases that are insoluble or slightly soluble in water
  2. 4. ________ error is the error whereby ________ reaction time affects accuracy of the result of an experiment
  3. 5. ________ speed is the total distance travelled over total time
  4. 8. SI unit for time
  5. 10. ________ delivery is used to collect gases that are denser than air
  6. 11. ________ refers to the number of complete oscillations in a second
  7. 13. ________ delivery is used to collect gases that are less dense than air
  8. 14. An apparatus used to accurately measure up to 0.01mm
  9. 16. The rate of change of velocity of an object per unit time
  10. 17. A gas ________ can be used to collect all types of gases
  11. 18. A measure of the repeating motion that a pendulum makes as it makes a complete swing
  12. 19. ________ error occurs when the zero mark on an apparatus’ main scale is not in line with the zero mark on the sliding or moving scale when closed
  13. 22. SI unit for frequency
  14. 23. The process when a substance changes its state from a solid to a gas
  15. 24. ________ is the time taken to complete an oscillation
Down
  1. 2. A method used to obtain a soluble pure solid from an impure solution if the solid decomposes on strong heating
  2. 3. Used to measure temperature
  3. 6. The shortest distance measured in a straight line in a specified direction between two points regardless of the actual path taken by the moving object
  4. 7. An apparatus used to accurately measure up to 0.01cm
  5. 9. The rate of change of displacement of an object per unit time
  6. 12. ________ distillation is a method used to separate pure liquid from a solution of two or more miscible liquids
  7. 15. A method used to separate and identify coloured and colourless mixtures
  8. 20. Method used to separate insoluble solids from a liquid-solid mixture
  9. 21. ________ speed is when the acceleration is zero