magnet

The ferrofluid activity components including the signs, guides, tubes of ferrofluid, and magnets.

Exploring Materials - Ferrofluid

In this activity, learners investigate the properties of ferrofluid and magnetic black sand, learning that the surprising difference in the behavior of these two materials is due to size.

Two young learners and facilitator push down on a red magnet being repelled by a magnetic black base

Exploring Products - Computer Hard Drives

In this activity, learners use floating ring magnets to store data and model how computer hard drives works.