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Make a CLOUD! Fun science activity for kids. For younger children, this will have to be a demo (aerosol hairspray or blown out lit match is needed in a glass jar), but the children can still observe and record their Scientific method steps and can 'touch cloud' afterwards! :)
Make your own Super Bouncy Ball -- does anyone know how well this works? Seems fun, at any rate!
I was trying to make slime, but I mixed up the steps and ended up making a super bouncy ball instead.