Looking for Revision at KS3 Science?
DocBrown provides a wide range of activities in all the topics..

http://www.docbrown.info/ks3science.htm

Here are some science games, wordsearch and crossword puzzles, Powerpoint presentations, revision mindmaps and homework suggestions to help you with your science teaching and learning at UK KS3 and KS4. All of the puzzles and games are free to print out.

http://www.ntscience.co.uk/

Here is a useful Powerpoint as an introduction to Nutrition and Health

Can also be used for KS4

nutritionandhealth