Stage 3: note that bicarb on its own doesn’t seem to have made much difference.
Add vinegar.
Marvel at the colour of the water.
we're all making our own sense of things
Stage 3: note that bicarb on its own doesn’t seem to have made much difference.
Add vinegar.
Marvel at the colour of the water.
Oh my God. It’s full of stars.
It is too – but it didn’t look quite that way in real life when it was fizzing away.