Daily Practice · GCSE Science
March 2021 - GCSE Science 5-a-day
Every GCSE Science sheet published in March 2021, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in March 2021
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2021Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 2nd March 2021Define the term 'vector quantity' and give one example.
- 3rd March 2021Name the type of electromagnetic wave used to treat cancer by killing cells in a tumour, and state which part of the atom emits it.
- 4th March 2021State one difference between a moon and an artificial satellite.
- 5th March 2021Give one risk of stem cell treatment.
- 6th March 2021Why does a potometer measure water uptake rather than transpiration directly?
- 7th March 2021Why does the rate of photosynthesis fall at very high temperatures?
- 8th March 2021Define phenotype.
- 9th March 2021Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 10th March 2021State the four stages considered in a life cycle assessment.
- 11th March 2021Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 12th March 2021Define oxidation in terms of electrons.
- 13th March 2021State two units that the rate of a reaction can be measured in.
- 14th March 2021Name the type of biological molecule formed when amino acid monomers join together by condensation polymerisation.
- 15th March 2021Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 16th March 2021A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 17th March 2021A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 18th March 2021A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 19th March 2021A radio wave has a wavelength of 3 m. Calculate its frequency, given that all electromagnetic waves travel at 3 x 10^8 m/s in a vacuum.
- 20th March 2021Explain why electricity is transmitted through the National Grid at a very high voltage rather than at the voltage used in homes.
- 21st March 2021A 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.
- 22nd March 2021State two functions of bile.
- 23rd March 2021What is an antigen?
- 24th March 2021Name the chemical released at a synapse that carries the signal across the gap.
- 25th March 2021Explain why deforestation to create land for cattle grazing can reduce biodiversity.
- 26th March 2021Name the four stages usually considered in a life cycle assessment of a product.
- 27th March 2021A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 28th March 2021State two reasons why a percentage yield is less than 100 percent.
- 29th March 2021State what is meant by the activation energy of a reaction.
- 30th March 2021State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
- 31st March 2021Explain why the baseline is drawn in pencil rather than ink.