Daily Practice · GCSE Science
October 2025 - GCSE Science 5-a-day
Every GCSE Science sheet published in October 2025, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in October 2025
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 2025Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
- 2nd October 2025State, in one sentence, what the Big Bang model proposes about the early universe.
- 3rd October 2025Give one adaptation of a root hair cell for absorbing mineral ions.
- 4th October 2025Describe how phagocytes destroy pathogens in the body.
- 5th October 2025A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.
- 6th October 2025A 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.
- 7th October 2025Why is a polystyrene cup with a lid used in energy-change experiments?
- 8th October 2025Write the electronic structure of a magnesium atom (12 electrons).
- 9th October 2025A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.
- 10th October 2025Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 11th October 2025Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 12th October 2025Name the gas that relights a glowing splint.
- 13th October 2025Name two gases that dissolve in atmospheric water droplets to cause acid rain.
- 14th October 2025Define power and give its unit.
- 15th October 2025Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 16th October 2025Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 17th October 2025Sound waves travel through a steel rail at approximately 5900 m/s. A sound wave sent along the rail has a frequency of 2950 Hz. Calculate its wavelength.
- 18th October 2025State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 19th October 2025Give one advantage of a light microscope over an electron microscope.
- 20th October 2025Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 21st October 2025Name the gas that is released as a product of photosynthesis.
- 22nd October 2025Name the gland often called the body's master gland.
- 23rd October 2025Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
- 24th October 2025Explain why potable water is not required to be chemically pure.
- 25th October 2025Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 26th October 2025State the name given to a reaction in which a substance loses electrons.
- 27th October 2025State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 28th October 2025State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 29th October 2025Give two processes that removed carbon dioxide from the early atmosphere.
- 30th October 2025Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 31st October 2025Give the colour and function of the earth wire.