We had so much fun with the pumpkin volcanoes last time that today we did dinosaur swamps–also with baking soda and vinegar. I gave each kiddo a pie tin, a bottle of apple cider vinegar, baking soda, glitter and dinosaurs, along with rocks, toy palm trees etc. I also had some slime that was donated after Halloween last year that got divided up between the pie tins. It was a hit!
Pumpkin + Vinegar + Baking Soda + Glitter