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Daily Practice · GCSE Science

July 1998 - GCSE Science 5-a-day

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July 1998

31 sheets · 155 questions · GCSE

July 1998 compilationAll answers

Every sheet in July 1998

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

  1. 1st July 1998State two uses of artificial satellites.
  2. 2nd July 1998How many pairs of chromosomes are there in a human body cell?
  3. 3rd July 1998Where are most stomata found on a typical leaf, and why?
  4. 4th July 1998Name four limiting factors of photosynthesis.
  5. 5th July 1998State one difference between selective breeding and genetic engineering.
  6. 6th July 1998State what is meant by the term biodiversity.
  7. 7th July 1998Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
  8. 8th July 1998Give one use of nanoparticles and one associated risk.
  9. 9th July 1998Give the ionic equation for neutralisation.
  10. 10th July 1998State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).
  11. 11th July 1998State the functional group found in all carboxylic acids.
  12. 12th July 1998Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.
  13. 13th July 1998State the equation for gravitational potential energy.
  14. 14th July 1998State the correct SI unit for density.
  15. 15th July 1998Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
  16. 16th July 1998State the speed at which all electromagnetic waves travel through a vacuum.
  17. 17th July 1998A transformer has 500 turns on its primary coil and 2500 turns on its secondary coil. State, with a reason, whether this is a step-up or a step-down transformer.
  18. 18th July 1998Convert 0.02 mm into micrometres (um).
  19. 19th July 1998Explain what happens to an enzyme above its optimum temperature.
  20. 20th July 1998Name three non-specific defences of the human body.
  21. 21st July 1998Name the two parts of the central nervous system (CNS).
  22. 22nd July 1998Name the group of organisms that break down dead plant and animal matter, returning mineral ions to the soil.
  23. 23rd July 1998State one benefit of recycling metal rather than extracting new metal from its ore.
  24. 24th July 1998Name the three types of strong chemical bonding.
  25. 25th July 1998Convert a concentration of 0.20 moles per cubic decimetre of NaOH into grams per cubic decimetre. (Mr = 40)
  26. 26th July 1998State the energy transfer that occurs during an exothermic reaction.
  27. 27th July 1998Hexadecane (C16H34) is cracked to produce dodecane (C12H26) and one other product. Calculate the molecular formula of the other product.
  28. 28th July 1998In a chromatography experiment, a dye spot travels 4.5 cm and the solvent front travels 6.0 cm. Calculate its Rf value.
  29. 29th July 1998Define the resolution of a measuring instrument.
  30. 30th July 1998Two 4 ohm resistors are connected in series. Calculate the total resistance.
  31. 31st July 1998Which type of radiation is stopped by a sheet of paper?