Daily Practice · GCSE Science
May 2004 - GCSE Science 5-a-day
Every GCSE Science sheet published in May 2004, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in May 2004
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2004An X-ray has a wavelength of 1 x 10^-10 m. Calculate its frequency (speed of light = 3 x 10^8 m/s).
- 2nd May 2004A satellite in a stable, small-radius, close orbit around the Earth is compared with a satellite in a stable, large-radius, distant orbit. State which of the two satellites has the greater orbital speed.
- 3rd May 2004Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
- 4th May 2004Why are xylem cells strengthened with lignin?
- 5th May 2004Why is glucose converted into starch for storage?
- 6th May 2004Give one piece of evidence that supports Darwin's theory of evolution by natural selection.
- 7th May 2004State one way in which high biodiversity benefits an ecosystem.
- 8th May 2004Explain how painting an iron gate helps prevent it from rusting.
- 9th May 2004Why can an ionic solid not conduct electricity?
- 10th May 2004Name the salt made from zinc oxide and nitric acid.
- 11th May 2004State what is meant by a catalyst.
- 12th May 2004Name the two methods used to produce ethanol industrially.
- 13th May 2004Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 14th May 2004Define specific heat capacity.
- 15th May 2004A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 16th May 2004State the number of protons and the number of neutrons in an alpha particle.
- 17th May 2004State whether sound waves are transverse or longitudinal.
- 18th May 2004State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 19th May 2004State one structure found in a bacterial cell but not in an animal cell.
- 20th May 2004Why does a food test for sugars need a water bath?
- 21st May 2004Explain what is meant by a double blind trial.
- 22nd May 2004State why a reflex action is described as involuntary.
- 23rd May 2004A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.
- 24th May 2004Define a finite resource, giving one example.
- 25th May 2004State one reason why simple covalent substances such as chlorine have low melting points.
- 26th May 2004Give the formula for atom economy.
- 27th May 2004Explain, in terms of the reaction pathway, why adding a catalyst increases the rate of a reaction without changing the overall energy change of the reaction.
- 28th May 2004State what happens to the boiling point of hydrocarbons as their chain length increases.
- 29th May 2004State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 30th May 2004How is the uncertainty in a set of repeated readings usually estimated?
- 31st May 2004Define electric current.