Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
11th September 2024
- 1Chemical Changes
Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 2Reactivity, Acids and Salts
Complete: acid + metal carbonate gives ...
- 3Electrolysis
Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 4Energy Changes
A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 5Exothermic and Endothermic Reactions
State what is meant by the activation energy of a reaction.
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.
Recent GCSE Science sheets
Every sheet is deterministic: the same date always regenerates the same five questions. All of September 2024, including the monthly compilation PDF.