In this seven-minute talk, MythBuster Adam Savage inspires students to understand how simple questions can lead to major scientific discoveries. Through three simple stories -- those of Richard Feynman, Eratosthenes, and Hippolyte Fizeau -- Savage explains how scientists can do great work with very common tools, the most significant of which is the human brain.

This should be required viewing for kids even remotely interested in science:

Bonus points earned by Savage: saying that the world is "spherical" rather than "round"; referencing Feynman's Challenger work; and being a little suspicious about the roundness of the numbers in the Eratosthenes story. Well done, sir.