Flash questions

Short drills on core skills, drawn at random each time you open one. A wall of cards to project, print or run as a timed slideshow — answers stay hidden until you ask for them.

All series shuffled togetherA wall drawn from the whole catalogue: each card comes from a different series, with no warning.Open the shuffle Mental maths challengeAs many maths questions as you can in 1 or 5 minutes, against the clock.Start the challenge

ChemistryMiddle school

Symbols of the chemical elements

Going from the name of a chemical element to its symbol, and from the symbol to the name, over the fifty-five most common elements.

Open the wall

What are flash questions for?

A flash question is answered in seconds, in your head. Strung into a short series, they keep sharp the basics — times tables, fractions, conversions, formulas — that longer exercises already assume. Every wall is drawn afresh: the same series never comes back identical, unless you keep its address.