Every day, when we go on our walk, the children always run ahead to check on their favorite attraction - three hollowed out stumps that they pretend are volcanoes filled with hot liquid lava. They go on and on about the volcanoes and the lava inside (and also the crocodiles and dinosaurs! It's a very dangerous place!). So today I finally decided to try out Ye Ol' Science Standby:the Baking Soda and Vinegar Volcano.
