Comprehension and additional task exercises pages 88 and 89 from Next Page Science KS3 Complete. Accompanying PowerPoint and word searches available for** free** from the website.
This exercise covers:
• The difference between endothermic and exothermic reactions
• A pictorial aid for understanding exothermic and endothermic
• Simple energy level diagrams as a way of representing the reactions in terms of changes in chemical energy
• Examples of endothermic reactions: thermal decomposition and cold packs
• Examples of exothermic reactions: Burning, neutralisation, acid plus metal and respiration
• Exercises on recognising chemical reactions as endo/exo through temperature difference and energy released/absorbed in bond making/breaking
• Amazing WHAT? facts
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