Link UP! The Challenge
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500 mL measuring jug
Table covering e.g. plastic sheet
200 mL squirty bottle (optional)
Indigestion tablets containing calcium carbonate e.g. Rennie (not chewy ones!). Weigh a tablet – you’ll want 2-3 g
- Pour 100 mL vinegar into a cup
- Break up the indigestion tablets – put one tablet in the dessertspoon and use the teaspoon to crush it.
- Add the crushed tablets to the vinegar. Stir with the teaspoon until they have dissolved. Note down any observations you make.
- In another cup, mix 50 mL Gaviscon with food colouring of your choice (but make sure you only use 1-2 drops!)
- Use the dessertspoon to slowly drip the coloured Gaviscon into the vinegar solution.
What do you notice? Can you adjust how you add the Gaviscon to make different shapes? Try to flick blobs in, add from the squirty bottle, or pour it in down the back of a spoon!