Daily Practice · GCSE Science
December 2020 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 2020, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 2020
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2020State the relative charge of a neutron.
- 2nd December 2020Explain why potassium is more reactive than sodium.
- 3rd December 2020Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 4th December 2020A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 5th December 2020State what is meant by dynamic equilibrium.
- 6th December 2020A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
- 7th December 2020A device transfers 4500 J in 90 s. Calculate its power.
- 8th December 2020A 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.
- 9th December 2020Why does a bicycle pump get warm when used?
- 10th December 2020A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 11th December 2020State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 12th December 2020State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 13th December 2020What happens to the DNA before mitosis begins?
- 14th December 2020State two conditions that increase the rate of transpiration.
- 15th December 2020A lamp is moved from 15 cm to 30 cm away. What happens to the light intensity?
- 16th December 2020Define the term allele.
- 17th December 2020Name the biological process that removes carbon dioxide from the atmosphere and converts it into carbon compounds in a plant.
- 18th December 2020State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
- 19th December 2020Explain why graphite conducts electricity but diamond does not.
- 20th December 2020State what is observed when magnesium ribbon is added to copper sulfate solution.
- 21st December 2020State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
- 22nd December 2020Explain why carboxylic acids are described as 'weak acids'.
- 23rd December 2020Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 24th December 2020Calculate the kinetic energy of a 0.5 kg ball moving at 6 m/s.
- 25th December 2020Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 26th December 2020Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 27th December 2020Explain why ultraviolet radiation can be harmful to human skin.
- 28th December 2020State two ways of inducing a potential difference across a conductor using a magnetic field.
- 29th December 2020A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
- 30th December 2020Where is bile made and where is it stored?
- 31st December 2020Why does a vaccinated person not usually become ill when they meet the pathogen?