Cubs make a volcanoe out of playdough and then add bicarb and vinegar to make it erupt!
Small plastic drinks bottle
Bicarb (baking soda)
Plastic tray to stand their volcanoes in
Cleaning equipment to clear up the mess!
Add some bicarb to the bottle
Put the bottle in the plastic tray
Cubs then make a volcanoe around their plastic drinks bottle.
Add a drop of food colouring to the bottle followed by the vinegar
Stand back and watch the volcanoes erupt!