Science make an edible DNA model. This could be use in science class when learning about DNA. Student would love this because its a ton of candy and its creative and hands on. Teachers would love this because its an effective teaching method.
I have found the tutorial to make this fairy jar, and it's easy. You just need a mason jar, glitter, glow sticks and a serrated knife. This is a good activity to do with kids because when they are finished making it, it can serve as a night light.
Make Slime with Laundry Detergent (Liquid Starch alternative for UK)
How to make slime using laundry detergent! A NEW recipe for slime making from Fun at Home with Kids that uses neither borax nor liquid starch. You can find the necessary ingredients in the UK and Canada as well as in the US.
Have you ever seen raisins dance? This is a simple science experiment that everyone will enjoy! And all you need are three things that you probably have in your kitchen