Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
20th September 2026
- 1Bond Energies, Cells and Fuel Cells
State whether breaking a chemical bond requires energy or releases energy.
- 2Rate and Extent of Chemical Change
Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 3Rates of Reaction
In the disappearing cross required practical, state the dependent variable that is measured.
- 4Reversible Reactions and Equilibrium
In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 5Organic Chemistry
Name the two industrial methods of cracking.
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