Daily Practice · GCSE Science
July 2018 - GCSE Science 5-a-day
Every GCSE Science sheet published in July 2018, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in July 2018
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 2018Why can an ionic solid not conduct electricity?
- 2nd July 2018Name the salt made from zinc oxide and nitric acid.
- 3rd July 2018State what is meant by a catalyst.
- 4th July 2018Name the carboxylic acid produced when ethanol is oxidised.
- 5th July 2018Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 6th July 2018Define specific heat capacity.
- 7th July 2018A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 8th July 2018State the number of protons and the number of neutrons in an alpha particle.
- 9th July 2018Define the term 'wavelength' of a wave.
- 10th July 2018State the difference between an alternator and a dynamo.
- 11th July 2018A 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.
- 12th July 2018Why does a food test for sugars need a water bath?
- 13th July 2018Explain what is meant by a double blind trial.
- 14th July 2018State the type of effector that produces a physical response by contracting.
- 15th July 2018Give one example of a biotic factor that could affect a population of rabbits.
- 16th July 2018Name the four stages usually considered in a life cycle assessment of a product.
- 17th July 2018A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 18th July 2018Give the formula for atom economy.
- 19th July 2018Explain, 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.
- 20th July 2018Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
- 21st July 2018State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 22nd July 2018How is the uncertainty in a set of repeated readings usually estimated?
- 23rd July 2018Define electric current.
- 24th July 2018A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 25th July 2018State two factors that increase a driver's thinking distance.
- 26th July 2018Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
- 27th July 2018State, in one sentence, what the Big Bang model proposes about the early universe.
- 28th July 2018Calculate the surface area to volume ratio of a cube of side 2 cm.
- 29th July 2018Which type of pathogen causes athlete's foot, a fungal skin infection?
- 30th July 2018A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.
- 31st July 2018A man who is a known carrier of cystic fibrosis (Ff) has children with a woman who has been confirmed to carry no cystic fibrosis allele at all (FF). Explain why none of their children can have cystic fibrosis.