OOBLECK AKA Goop Hands-down this is my favorite go-to project for kids of all ages! Everyone loves it and it only has two ingredients: Cornstarch (cornflour) and Water. And here's a clean-up tip: Let it dry and then sweep it up :) http://babbledabbledo.com/how-to-make-oobleck/ | Babble Dabble Do

STRING ART FOR KIDS Learn how to do string art at two different scales (GIANT and mini) and use it as an opportunity to teach kids about geometry & levers. Materials and full instructions here: https://babbledabbledo.com/how-to-do-string-art-with-kids-scaled-up-and-down/ | Babble Dabble Do