Daily Practice · GCSE Science
February 2013 - GCSE Science 5-a-day
Every GCSE Science sheet published in February 2013, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in February 2013
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2013Name the type of electromagnetic wave used by a television remote control.
- 2nd February 2013Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 3rd February 2013What happens to the DNA before mitosis begins?
- 4th February 2013State two conditions that increase the rate of transpiration.
- 5th February 2013A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 6th February 2013Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.
- 7th February 2013Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 8th February 2013State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 9th February 2013Explain why graphite conducts electricity but diamond does not.
- 10th February 2013State what is observed when magnesium ribbon is added to copper sulfate solution.
- 11th February 2013State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 12th February 2013Name the carboxylic acid produced when ethanol is oxidised.
- 13th February 2013Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 14th February 2013Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 15th February 2013A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 16th February 2013Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 17th February 2013Define the term 'wavelength' of a wave.
- 18th February 2013State the difference between an alternator and a dynamo.
- 19th February 2013A 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.
- 20th February 2013Where is bile made and where is it stored?
- 21st February 2013Why does a vaccinated person not usually become ill when they meet the pathogen?
- 22nd February 2013State the type of effector that produces a physical response by contracting.
- 23rd February 2013Give one example of a biotic factor that could affect a population of rabbits.
- 24th February 2013Name the four stages usually considered in a life cycle assessment of a product.
- 25th February 2013A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 26th February 2013Calculate the concentration in moles per cubic decimetre of a solution containing 0.5 mol in 250 cubic centimetres.
- 27th February 2013State the energy transfer that occurs during an endothermic reaction.
- 28th February 2013Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O