Primary level science station for magnets. "Is it magnetic?" This sorting science station is appropriate for pre-k, kindergarten, primary grades, or preschool. With younger children be careful to ensure items size isn't a choking hazard.
How to set up the science center (with freebies) in your early childhood classroom. One of the BEST articles I've read on science centers both general and specific. Also provides fiction and nonfiction texts to pair with the centers.