This is a really fun, educational craft to do with kids of all ages. Apart from just being fun, they will also learn about chemical reactions.
The volcano can get really messy, so it is a good idea to build your erupting volcano outside.
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Read through all the instructions first before starting your volcano. Make sure you have everything you need at hand and your working area is clean and tidy. Cover your surface with plastic or brown paper.
Using the funnel, half fill one of the bottles with vinegar .
Then add the red food colouring to the vinager.
Use the funnel again to put 3-4 spoons of bicarb into the other bottle.
Place the same bottle in the middle of the plate as the volcano. Pile the sand around it, using a little bit of water to make the sand a little muddy so that it all sticks together nicely.
Using the funnel, carefully pour some of the coloured vinegar into the bottle with the bicarb, then remove the funnel quickly.