Daily Practice · GCSE Science

Daily Practice - GCSE Science

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

4th August 2025

5 questions · GCSE · 584 questions in this band

1
Chemical Bonding: Ionic, Covalent and Metallic
Give the charge on an ion formed by a group 2 element.
2
Structures, Properties and Nanoparticles
Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
3
Quantitative Chemistry
Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
4
Moles, Formulae and Equations
State the value of the Avogadro constant and what it counts.
5
Concentration, Yield and Atom Economy
Convert a concentration of 0.20 moles per cubic decimetre of NaOH into grams per cubic decimetre. (Mr = 40)

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