Fluffy Bathtub Paint: all you need is the soap from the Ivory soap experiment, boiling water, and food coloring. Mix in the blender and you got yourself some bath paint. Those crayon & paint you can use in the bath are so expensive!
Cool sensory play and science with soap slime made from Ivory soap and the microwave ivory soap science experiment. Fun science for preschool and kindergarten age kids. No liquid starch needed. Messy sensory play for kids.
Ivory soap in the microwave -- Place the unwrapped bar on a large, microwave-safe dish. Heat for two to three minutes; Remove it from the microwave and let it cool to the touch before playing with it outside or in the bathtub.