Erosion and Pollution Science Experiment: It's easy to set up and shows the value of an ecosystem.
Where does water come from? Find out in this "What is Water Cycle?" Science Experiment
Make a rotating heart or homopolar motor, for which you need just a few simple things!
Why is the sky blue? This and more 5 Minute Science Experiments for Kids and more home-school science lessons and ideas on Frugal Coupon Lviing.