Daily Practice · GCSE Science

Daily Practice - GCSE Science

Biology, chemistry and physics recall, definition and calculation, drawn from every strand.

27th October 2025

5 questions · GCSE · 584 questions in this band

1
Bond Energies, Cells and Fuel Cells
State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
2
Rate and Extent of Chemical Change
A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
3
Rates of Reaction
Explain how a catalyst increases the rate of a reaction without being used up.
4
Reversible Reactions and Equilibrium
State the catalyst commonly used in the Haber process.
5
Organic Chemistry
State the general formula of the alkanes.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Every sheet is deterministic: the same date always regenerates the same five questions. All of October 2025, including the monthly compilation PDF.