These cool, Smithsonian-approved Stem Toys incorporate learning into Playtime

Smithsonian Plasma Ball

You can imagine this plasma ball as a STEM lava lamp. The pattern of lighting can be controlled by children by drawing around the device with their fingers. Or they can set it on sound mode and use their voice or music. This is a great toy for children because it's a mind-body tool. You will be amazed by the movement of the plasma while they look.