4M

Learn the science and mechanics of how barrier gates work, and you can use it to keep pesky intruders out of your room! It also includes a “smart k...

Learn how the power of a mousetrap’s spring can propel this cool racer up to 50 feet (15 metres) in distance with its kinetic energy…no batteries r...

Eco-friendly, fun to decorate, and smart! Use the included 2 paper cups (each 2.5 in. H) to place on the base, or you can recycle other materials f...

Assemble the spider, then set up the web and watch it run up and down the web just like a real spider! It even knows how to change direction as it ...