A game where you need to order numbers against the clock. Be quick or the bandit will get you. Take care to read the questions carefully. You can play the game without the recording sheet which has imperial measures.pH Scale
A good interactive resource which explains how pH is a measure of the strength of an acid or alkali and how to interpret the colours of universal indicator solution. This site works well on an interactive whiteboard.Teachit.co.uk
Quality resources including lesson plans and schemes of work for English teachers of 11 - 18 age range. There are free resources, but the site offers a subscription service.