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    I need help for my science
    thanks
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    (Original post by Harry.Y)
    I need help for my science
    thanks
    Any particular aspect of science?
    There's loads of great resources out there (although some are still being developed for new spec) from Science and Maths by Primrose Kitten and other science youtubers (they're quite easy to find if you youtube a particular topic) to textbooks, revision guides and lots of helpful people on TSR

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    (Original post by Lemur14)
    Any particular aspect of science?
    There's loads of great resources out there (although some are still being developed for new spec) from Science and Maths by Primrose Kitten and other science youtubers (they're quite easy to find if you youtube a particular topic) to textbooks, revision guides and lots of helpful people on TSR

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    Can you summarize the whole topic of 'chemical changes' and 'energy changes' please (aqa chemistry) ?

    Thanks
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    If you’re studying chemical changes, you will most likely be doing physical changes too.

    A chemical change is when particles have been mixed together and the atoms have formed bonds, eg: mixing an egg with flour and sugar can not be converted back to just separate egg flour and sugar.

    A physical change is when the molecular structure of the object have been changed, but has not bonded with any other atoms or particles, eg: you can melt metal to turn it into a liquid, but then you can change it back to a solid by letting it harden.

    Hope this helps
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