Horrible Science - Violent Volcano

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Make a 'lava-ly' erupting volcano, become a survival expert and discover why volcanoes blow their tops!Make a 'lava-ly' erupting volcano, become a survival expert and discover why volcanoes blow their tops! Contents: plastic volcano model, tartaric acid, bicarbonate of sold, goggles, scoop, mini card stand ups and 'Horrible Info' leaflet. Show more