Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
15th December 2025
- 1Exothermic and Endothermic Reactions
State what is meant by the activation energy of a reaction.
- 2Bond Energies, Cells and Fuel Cells
State whether forming a new chemical bond requires energy or releases energy.
- 3Rate and Extent of Chemical Change
State the four factors that can increase the rate of a chemical reaction.
- 4Rates of Reaction
In the gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.
- 5Reversible Reactions and Equilibrium
State what is meant by dynamic equilibrium.
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