LEGO Ideas The Evolution of STEM Set 21355 captures the journey of science, technology, engineering, and mathematics through interactive brick-built displays.

Specs:

• 1,200 pieces including minifigures and functional models
• Designed for ages 12 and up with an advanced building challenge
• Includes a spinning DNA helix, a movable space shuttle, and a working early computer section
• Features three minifigures representing key STEM pioneers (Leonardo da Vinci, Marie Curie, and a modern scientist)
• Integrated turning crank activates multiple kinetic elements across the display
• Display stand with printed timeline panels highlighting major STEM milestones
• LEGO pieces made from durable ABS plastic with clutch power for secure assembly
• Box includes numbered bags, step-by-step instruction booklet, and a separate poster
• Official LEGO Ideas set bearing the "21355" style code on the box and instructions

The Evolution of STEM Set 21355 uses a crank mechanism to demonstrate how scientific discoveries build on each other, turning a series of static models into a connected timeline. This set works as an educational display piece for a desk, classroom shelf, or as a hands-on activity during a science-themed family building session.