Ramp races
Explorers (Foundation), mission E1 Push, Pull, Roll, lesson 3 of 6.
Hook
Is a tall ramp or a low ramp better for racing? Guess with a thumbs up or down!
Fair test
Make a ramp from 1 book, then 2, then 3. Measure how far the car rolls in hand-spans.
Bonus challenge
Build a tunnel at the bottom of the ramp. Can the car zoom through without bumping?
The build
🚗 Tiny Roller: Your very first rolling car — only 13 pieces! (level 1 of 5, about 5 minutes, 6 steps)