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Year 7
Yr 7 Chemistry
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States of Matter
Acids and Alkalis
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Forces
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Parts of a Plant
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Acids and Alkalis
Develop your understanding about Acids, Alkalis and the pH scale here.
Check out the following BBC websites activity on the pH scale.
http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/acids_bases_metals/revision/1/
http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/ph_experiment/activity/