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Daily Practice · GCSE Science

January 1970 5-a-day

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January 1970

31 sheets · 155 questions · GCSE

January 1970 compilationAll answers

Every sheet in January 1970

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

  1. 1st January 1970Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
  2. 2nd January 1970Why do polymers have higher melting points than small molecules such as methane?
  3. 3rd January 1970Complete: acid + metal carbonate gives ...
  4. 4th January 1970State the four factors that can increase the rate of a chemical reaction.
  5. 5th January 1970Name the carboxylic acid produced when ethanol is oxidised.
  6. 6th January 1970Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
  7. 7th January 1970By what factor does kinetic energy increase if speed is doubled?
  8. 8th January 1970A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
  9. 9th January 1970Define the term 'half-life' of a radioactive isotope.
  10. 10th January 1970Define the term 'wavelength' of a wave.
  11. 11th January 1970State the difference between an alternator and a dynamo.
  12. 12th January 1970A 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.
  13. 13th January 1970Describe the positive result of the Biuret test.
  14. 14th January 1970What is tested during preclinical testing?
  15. 15th January 1970State the type of effector that produces a physical response by contracting.
  16. 16th January 1970Give one example of a biotic factor that could affect a population of rabbits.
  17. 17th January 1970Name the four stages usually considered in a life cycle assessment of a product.
  18. 18th January 1970A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
  19. 19th January 1970Why do companies prefer reactions with a high atom economy?
  20. 20th January 1970On a reaction profile diagram, the reactants are drawn at a higher energy level than the products. State whether the reaction is exothermic or endothermic.
  21. 21st January 1970Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
  22. 22nd January 1970Explain why the solvent level in the container must be below the pencil baseline.
  23. 23rd January 1970In the specific heat capacity practical, why is the block insulated?
  24. 24th January 1970Describe the current-potential difference graph for a filament lamp.
  25. 25th January 1970State the difference between irradiation and contamination.
  26. 26th January 1970State two factors that increase a driver's thinking distance.
  27. 27th January 1970Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
  28. 28th January 1970State, in one sentence, what the Big Bang model proposes about the early universe.
  29. 29th January 1970Name the process that moves substances against a concentration gradient.
  30. 30th January 1970Which type of pathogen causes athlete's foot, a fungal skin infection?
  31. 31st January 1970A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.