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Daily Practice · GCSE Science

March 1986 5-a-day

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March 1986

31 sheets · 155 questions · GCSE

March 1986 compilationAll answers

Every sheet in March 1986

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st March 1986State one human activity that reduces the amount of land available for other organisms.
  2. 2nd March 1986State the two substances that must both be present for iron to rust.
  3. 3rd March 1986State the size range of a nanoparticle.
  4. 4th March 1986Why is aluminium extracted by electrolysis rather than by reduction with carbon?
  5. 5th March 1986Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
  6. 6th March 1986Name the carboxylic acid produced when ethanol is oxidised.
  7. 7th March 1986Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
  8. 8th March 1986What happens to the energy described as 'wasted' in a transfer?
  9. 9th March 1986A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
  10. 10th March 1986Explain the difference between irradiation and contamination.
  11. 11th March 1986Define the term 'wavelength' of a wave.
  12. 12th March 1986State the difference between an alternator and a dynamo.
  13. 13th March 1986A cube-shaped model cell has sides of length 3 cm. Calculate the surface area to volume ratio of the cube. Give your answer in the form n : 1.
  14. 14th March 1986Name the products of protein digestion.
  15. 15th March 1986State the difference between an antibiotic and a painkiller.
  16. 16th March 1986State the type of effector that produces a physical response by contracting.
  17. 17th March 1986Give one example of a biotic factor that could affect a population of rabbits.
  18. 18th March 1986Name the four stages usually considered in a life cycle assessment of a product.
  19. 19th March 1986A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
  20. 20th March 1986Convert 250 cubic centimetres into cubic decimetres.
  21. 21st March 1986A student heats solid copper carbonate strongly in a test tube, and it breaks down into copper oxide and carbon dioxide. Heating must be continued throughout the reaction for it to keep going. State whether this thermal decomposition reaction is exothermic or endothermic, and explain your reasoning.
  22. 22nd March 1986Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
  23. 23rd March 1986Write the formula for calculating an Rf value.
  24. 24th March 1986Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
  25. 25th March 1986What happens to the total resistance when a second resistor is added in parallel, and why?
  26. 26th March 1986What happens inside the nucleus when a beta particle is emitted?
  27. 27th March 1986State two factors that increase a driver's thinking distance.
  28. 28th March 1986Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
  29. 29th March 1986State, in one sentence, what the Big Bang model proposes about the early universe.
  30. 30th March 1986State three factors that increase the rate of diffusion.
  31. 31st March 1986Which type of pathogen causes athlete's foot, a fungal skin infection?