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Citric acid posts

Fizzy planets Activity

by Jasmine Fellows, 3 November 2022 | 0 comments

Three bath balls, various colours

These bath bombs are crafted mini models of your favourite planets! We promise they’ll smell better than Uranus.

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Infinitely scaling sherbet recipe Activity

by David Shaw, 6 March 2020 | 2 comments

Small pile of pink powder on a black surface.

Here’s a fizzy treat for your mouth! But this sherbet recipe has a mathematical trick. You can use it to make as much or as little as you like. Keeping the ingredients in proportion in this way is known as scaling.

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