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Last updated

23 June 2026

pdf, 307.4 KB
pdf, 307.4 KB

NEW AND IMPROVED!

A 30-question KS3 Chemistry worksheet on Energy Changes.
Covers:

Exothermic reactions
Endothermic reactions
Activation energy
Catalysts
Energy transfer
Respiration
Photosynthesis
Reaction profiles

Questions are a mix of 1-mark and 2-mark tasks with answers included. Perfect for:

KS3 Chemistry
Retrieval practice
Homework
Revision lessons
Assessment preparation

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