Gear speed lab: fast or strong?
Inventors (Intermediate), mission I3 Gear Superpowers, lesson 1 of 6.
Hook
Big gear turns small gear, or small turns big. Which one gives SPEED? Which gives STRENGTH?
Fair test
Turn the crank 1 time on each side. Count output turns. Record 40→8 and 8→40.
Bonus challenge
Give each side a superhero name: “The Flash” and “The Hulk”.
The build
🧪 Gear Speed Lab: Two cranks, two gear pairs: one makes things FAST, one makes things STRONG. (level 2 of 5, about 20 minutes, 13 steps)