Volcanic Eruptions - 5CH
The children constructed their volcanoes from newspaper and tissues built up around a plastic bottle.
They then painted their volcanoes. Bicarbonate of soda was tipped into the bottles,
about 2 tablespoons. Into this was poured about 150ml of clear vinegar which had been coloured
red using food dye. Stand back as the vinegar reacted with the bicarbonate of soda,
producing bubbles under pressure which led to the mixture flowing up the neck of the bottle
and out of the volcano. Cue screaming from children! View Gallery