Build literacy skills while making predictions with this sink-or-float activity. It's fun to learn about new concepts in a hands-on way. This family does just that with a sink-or-float activity you ...

The Cartesian Diver: this is a classic demo named after the17 th-century philosopher and mathematician René Descartes. Buoyancy is the force that decides whether an object will sink or float, and has ...

Will it sink or float? The floating egg experiment is a simple and fun way for kids to get scientific at home this summer - and there is barely any mess, so it's good for parents, too! The experiment ...