Daily Practice · GCSE Science

Daily Practice - GCSE Science

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

3rd September 2026

5 questions · GCSE · 584 questions in this band

1
Electrolysis
Explain why solid sodium chloride does not conduct electricity, but molten sodium chloride does.
2
Energy Changes
A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
3
Exothermic and Endothermic Reactions
State the energy transfer that occurs during an endothermic reaction.
4
Bond Energies, Cells and Fuel Cells
State the two substances that react inside a hydrogen fuel cell.
5
Rate and Extent of Chemical Change
State what is meant by a catalyst.

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