Mark Rober's CrunchLabs · SEASON 4

Moving Train Jump Test

Episode 1 · 2026-06-25

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  • Family
  • Documentary

Episode overview

To answer an assortment of science puzzles, Mark takes his experiments to the next level — on top of a moving train and up high in a hot air balloon!

18 minutes

Season 4 episodes

1. Moving Train Jump Test2026-06-25 2. Lasers vs. Lightning Destruction Test2026-06-25 3. Glitter Bomb 2.0 vs. Porch Pirates2026-06-25 4. How to Escape a Police Sniffing Dog2026-06-25 5. Backyard Squirrel Olympics 3.02026-06-25 6. I Built My Own Space Satellite2026-06-25 7. I Spent $5M So You Can Go to Space2026-06-25