Daily Practice · GCSE Science
May 1999 - GCSE Science 5-a-day
Every GCSE Science sheet published in May 1999, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in May 1999
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1999State the two substances that react inside a hydrogen fuel cell.
- 2nd May 1999State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 3rd May 1999Give two human activities that increase the amount of greenhouse gases in the atmosphere.
- 4th May 1999A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
- 5th May 1999State the potential difference and frequency of the UK mains supply.
- 6th May 1999What did Bohr add to the nuclear model?
- 7th May 1999Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 8th May 1999State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 9th May 1999Why must the same volume of solution be used in every tube in an enzyme investigation?
- 10th May 1999State two ways that bile aids the digestion of fats.
- 11th May 1999Describe the symptoms of rose black spot and its effect on the plant.
- 12th May 1999A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 13th May 1999Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 14th May 1999State the relative charge of a neutron.
- 15th May 1999Why did Mendeleev leave gaps in his table?
- 16th May 1999Calculate the mass of 0.25 mol of sodium hydroxide, NaOH. (Na = 23, O = 16, H = 1)
- 17th May 1999A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 18th May 1999State what is meant by dynamic equilibrium.
- 19th May 1999State the flame test colour for sodium ions.
- 20th May 1999Calculate the gravitational potential energy gained by a 60 kg person climbing 5 m. (g = 9.8 N/kg)
- 21st May 1999A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
- 22nd May 1999A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
- 23rd May 1999A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 24th May 1999State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 25th May 1999State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 26th May 1999State three functions of mitosis.
- 27th May 1999What happens to guard cells when a plant is short of water?
- 28th May 1999Write the word equation for photosynthesis.
- 29th May 1999Define the term allele.
- 30th May 1999State one method used to try to maintain biodiversity.
- 31st May 1999Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.