Daily Practice · GCSE Science
May 1997 - GCSE Science 5-a-day
Every sheet in May 1997
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1997Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
- 2nd May 1997State the type of large biological molecule that all enzymes are made from.
- 3rd May 1997Define a communicable disease.
- 4th May 1997State one difference between nervous and hormonal coordination.
- 5th May 1997State what is meant by a selection pressure.
- 6th May 1997A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
- 7th May 1997Explain why potassium is more reactive than sodium.
- 8th May 1997Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 9th May 1997Using the values in the previous question, calculate the overall energy change for the reaction.
- 10th May 1997State Le Chatelier's principle in your own words.
- 11th May 1997A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
- 12th May 1997A device transfers 4500 J in 90 s. Calculate its power.
- 13th May 1997A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
- 14th May 1997Why does a bicycle pump get warm when used?
- 15th May 1997On a velocity-time graph, what does the area between the line and the time axis represent?
- 16th May 1997State the speed of all electromagnetic waves travelling through a vacuum.
- 17th May 1997State the name of the force that keeps a satellite in orbit around the Earth.
- 18th May 1997What happens to the DNA before mitosis begins?
- 19th May 1997State two conditions that increase the rate of transpiration.
- 20th May 1997A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 21st May 1997A plant grown in the shade is shorter than a genetically identical plant of the same species grown in full sunlight. State whether this difference is genetic variation, environmental variation, or both.
- 22nd May 1997Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 23rd May 1997State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 24th May 1997Explain why graphite conducts electricity but diamond does not.
- 25th May 1997State what is observed when magnesium ribbon is added to copper sulfate solution.
- 26th May 1997State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 27th May 1997Name the small molecule typically released as a by-product during condensation polymerisation.
- 28th May 1997State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 29th May 1997Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 30th May 1997Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 31st May 1997Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.