If you need a super simple volcano recipe, it doesn't get much easier than this. Prep is about 3 minutes, and there is no clean up necessary. Easy Baking Soda and Vinegar Volcano Eruption for Kids by Preschool Inspirations
Make your own erupting SOUND volcano using pop rocks & other simple household ingredients! What kid wouldn't want to make a volcano with pop and fizzle sound effects as it erupts and bubbles? Way too fun!