Here are your all-time top 20 science resources, based on the number of times you downloaded them and how favourably you reviewed them. Science demonstrations This booklet includes more than 60 science demos. PowerPoint quiz template An easy-to-use template for quizzes on IWB. Assessing pupils' progress in Science This PowerPoint contains the entire text of the APP-Science 'Big Sheet'. Biology 2 (AQA) summary sheet A double-sided poster to help pupils with their revision. How science works keywords display A series of PowerPoint slides that can be printed out and displayed in labs to raise awareness of terminology. Cross breeding Mr Men In this PowerPoint you see the effects of cross breeding the popular cartoon characters of the Mr Men and the Little Misses. The atom game A fun game, that enables pupils to get to grips with the structure of the atom. Classification A PowerPoint including classifications of plants and animals. Food chains and food webs A description of food chains and food webs with a Finding Nemo food web. Earth and Space Galaxy song Monty Python's Galaxy Song running alongside images of the universe. What are reactions? Revision puzzles A two-page set of puzzles to help with chemical reaction revision. C2 revision booklet for AQA Comprehensive revision aid containing questions that will take students through the whole C2 course. P1a revision summary Double-sided summary sheet to aid revision. Keyword display Classroom display containing scientific keywords. AQA Biology year 10 Bb1a A revision PowerPoint that has all the information from the AQA core science book for the B1a module. AQA C1a Products from rocks revision PowerPoint A revision PowerPoint covering the whole C1a module, including limestone, metals and alloys and crude oil. Chemical reactions - keyword turnover cards Card game that allows students to see how their knowledge of keywords is increasing. Y10 Energy and electricity revision worksheets Revision worksheets for this topic. Energy resources activity Posters to help students summarise the advantages and disadvantages of various energy resources. Atomic structure Challenges pupils to guess the element from the Periodic Table from its description.