Daily Practice · GCSE Science
December 2025 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 2025, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 2025
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2025Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 2nd December 2025A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 3rd December 2025A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 4th December 2025A 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.
- 5th December 2025State whether sound waves are transverse or longitudinal.
- 6th December 2025State the name of the component at the centre of a transformer's primary and secondary coils, and state its purpose.
- 7th December 2025State one structure found in a bacterial cell but not in an animal cell.
- 8th December 2025State two functions of bile.
- 9th December 2025What is an antigen?
- 10th December 2025State why a reflex action is described as involuntary.
- 11th December 2025A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.
- 12th December 2025Define a finite resource, giving one example.
- 13th December 2025State one reason why simple covalent substances such as chlorine have low melting points.
- 14th December 2025State two reasons why a percentage yield is less than 100 percent.
- 15th December 2025State what is meant by the activation energy of a reaction.
- 16th December 2025State what happens to the boiling point of hydrocarbons as their chain length increases.
- 17th December 2025Explain why the baseline is drawn in pencil rather than ink.
- 18th December 2025Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 19th December 2025State the equation linking potential difference, current and resistance.
- 20th December 2025Define half-life.
- 21st December 2025A skateboarder of mass 55 kg moving at 4 m/s collides with and grabs onto a stationary shopping trolley of mass 20 kg, and they move off together. Calculate their combined velocity immediately after the collision.
- 22nd December 2025Describe the shape of the magnetic field produced around a long straight wire carrying a current.
- 23rd December 2025State how the amount of red-shift is related to a galaxy's distance from Earth.
- 24th December 2025Define osmosis.
- 25th December 2025A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
- 26th December 2025State the word equation for anaerobic respiration in human muscle cells.
- 27th December 2025State whether cystic fibrosis is caused by a dominant or a recessive allele.
- 28th December 2025A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 29th December 2025Why do isotopes of an element react in the same way?
- 30th December 2025Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 31st December 2025Aqueous copper sulfate solution is electrolysed using inert graphite electrodes. State the products formed at (a) the cathode and (b) the anode, giving a reason for each.