This science project for kids has been all over the internet and for good reason, its so cool! I planned this for our final science project of the year at preschool and vastly overestimated the amount of milk needed. I bought about 4 gallons and ended up
Homemade Puff Paint: 1 tablespoon self-raising flour a few little drops of food colouring 1 tablespoon salt Then add some water to make a nice smooth paste. Microwave the design on high for 10 – 30 seconds until the paint puffs and it’s all nice and dry.