Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Concentration, Yield and Atom Economy
Convert 250 cubic centimetres into cubic decimetres.
- 2Chemical Changes
State the pH value of a neutral solution.
- 3Reactivity, Acids and Salts
Explain the difference between a strong acid and a concentrated acid.
- 4Electrolysis
In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
- 5Energy Changes
Using the values in the previous question, calculate the overall energy change for the reaction.
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.
Recent GCSE Science sheets
Every sheet is deterministic: the same date always regenerates the same five questions. All of May 2011, including the monthly compilation PDF.