Find Hundreds of Science Experiment Ideas in 'Scientific American'
by Meghan Moravcik Walbert on Offspring, shared by Me from Lifehacker on (#4NGS5)

A big part of being a kid is building things, deconstructing things and, in general, discovering how things work-that's why we buy those starter science experiment kits and toy microscopes to encourage their curiosity. But it's easy to run out of ideas to keep them interested in science, especially as they get older."