Stemwurks sales

Description: Pathfinders PFD-32 Leonardo Da Vinci Trebuchet Wooden Kit While Trebuchets were common siege engines in Medieval Times, Leonardo™s take on the most powerful weapon of the time was unique “ his design used one main mast, different from all...

Description: Pathfinders PFD-39 Hydraulic Gearbot Wooden STEM Activity Kit Hydraulic Gearbots are not all that common, but the fun thing about this one is that it is relatively easy to make, will amaze your friends, and you can toss popcorn around when...

Description: Pathfinders PFD-5 Hydraulic Machines 4 In 1 Wooden STEM Activity Kit The 4 in 1 STEM Hydraulics kit has 4 small kits that introduce kids to simple hydraulics, and their application to levers and simple machines. These kits provide hours of...

Description: Pathfinders PFD-50 Ancient Roman Ballista Wooden Kit The ballista was a powerful weapon “ originally invented by the Greeks over 2000 years ago and widely used by the Romans in battles and sieges. Using the stored energy in twisted sinew the...

Description: Pathfinders PFD-54 Ancient Roman Onager Wooden Kit The Onager was a powerful siege engine used by the Roman Army during the late Roman Empire in battle and to lay siege to city walls and fortifications in their territories around the...

Description: Pathfinders PFD-57 Ancient Roman Battering Ram Wooden Kit Battering Rams over the millennia had to evolve as the fortress defenders improved their techniques to repel the attackers. Starting with simple huge logs held by many attackers, to...

Description: Qihui 5802 Tech Bricks Hot Rod This is a Tech Bricks "Pull Back" Hot Rod that consists of 177 pieces and is appropriate for ages 6+

Description: Qihui 5803 Tech Bricks Monster Truck This Tech Bricks Monster Truck is a "Pull Back" 4 wheel drive. It consists of 196 pieces and is appropriate for ages 6 and up. It can be combined with QIH5804 to create an 8 wheel truck.

Description: Revell 85-8883 Visible V-8 Engine Model kit of the beloved V8 engine. The engineering behind this engine is a classic in and of itself. Fans of racing and motor sports appreciate this 8-cylinder engine for its power. Many cult cars feature a...

Description: Thames & Kosmos 545002 Wow in the World: Break-Open Crystal Geodes Unearth your inner geologist as you break open ten real geode specimens to reveal beautiful, sparkling crystals inside. Using your own hammer and the included safety goggles,...

Description: Thames & Kosmos 550014 Ultralight Airplanes Construct awesome flying gliders with ultralight plastic and bamboo parts. Build five different types of planes with different wing configurations to learn how wings provide lift and how planes...

Description: Thames & Kosmos 550030 Solar-Powered Rovers The sun™s energy can be used to do some pretty astonishing things! Get ready to explore the amazing capabilities of solar energy by building your own solar-powered vehicles and devices. Using a...