Take a look at any good-sized science museum gift shop, or toy or educational store, and you'll find many science kits for kids. Judging from the number and diversity of kits vying for attention, one can conclude that there's money to be made satisfying parents' desires to provide their children with some good clean science fun. There are chemistry sets, electronics experiment boxes, geology and fossil kits, do-it-yourself dissection kits (with preserved worms!), magnetism kits, and kits to teach astronomy, ecology, and—of course— optics.
by Michael E. Knotts