stem

Build a beautiful kinetic flower that comes to life whenever the sun shines. This motorized model features rotating petals driven by a solar panel,...

Build five out of this world robots powered entirely by the sun, no batteries required. Start with Helio, the main robot featuring a solar panel an...

Math learning becomes an adventure with Super Math Spy, an equation-making game where addition, subtraction, multiplication, and division become yo...

Uncover the mysteries of the human body. This hands-on toy lets your kids become real-life scientists! They'll love carefully removing squishy org...