Daily Practice · GCSE Science

Daily Practice - GCSE Science

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

21st September 2026

5 questions · GCSE · 584 questions in this band

1
Alkanes, Alkenes and Crude Oil
State the general formula of the alkenes.
2
Alcohols, Carboxylic Acids and Polymers
Explain why carboxylic acids are described as 'weak acids'.
3
Chemical Analysis
Name the gas that relights a glowing splint.
4
Tests for Ions, Gases and Flame Tests
State the flame test colour for sodium ions.
5
Chromatography and Instrumental Analysis
State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.

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.

Every sheet is deterministic: the same date always regenerates the same five questions. All of September 2026, including the monthly compilation PDF.