Filed under: Toys
Here's one we can't wait to try: Crystal-Growing Trees from Natural History Museum. Each package includes five small cardboard trees, five crystal solutions and a plastic tree holder. Simply follow the instructions and watch as cool crystals form on the tree within 24 hours for a fun snowy effect.
The trees are $7.99 at wildcreations.com. For more fun, also check out the company's Hydrophobic Sand (it never gets wet, even under water), Science Putty (it bounces, stretches, snaps and more) or the Unpredict-a-Ball (only you can predict where it will land).
Start by teaching him that it is safe to do so.