In its simplest form, a robot is any device capable of autonomous movement—anything from a toy car to a sophisticated bomb‑diffusion system. A robotics experiment can therefore span basic motion concepts or delve into advanced algorithms and AI-driven construction.
For beginners, 101 Science recommends starting with a paper‑based design. Students sketch a robot, identify its parts, and explain how each component contributes to movement. Once the blueprint is complete, they select suitable materials—cardboard, plastic, or recycled items—to build a functional prototype. This exercise nurtures creativity and introduces the fundamentals of mechanical design.
Edutopia, founded by George Lucas, highlights the Lego Mindstorms NXT as a powerful bridge between educators and learners, a claim echoed by education reformer Horace Mann. The kit includes motors, sensors, and modular parts that enable students to construct a range of robots—from humanoid walkers to robotic arms—and to program custom behaviors. Showcasing NXT at a science fair allows participants to demonstrate the physics of motion and the basics of robotics engineering.
Advanced students can replicate a project presented at the 2005 California State Science Fair: a robot that solves a Rubik’s Cube. The original design used Plexiglas chassis, stepper motors, and a controller programmed in C/C++ with the Kociemba algorithm. The robot can either maintain an internal state of the cube or employ cameras for visual feedback. This project offers a deep dive into algorithmic problem‑solving, sensor integration, and real‑time control.
