In the final leg of our road trip, we explore what happens to our bodies when we travel in cars.

Why do some people feel queasy during the ride? Why do cars far away look like they’re moving slower than they actually are? Why do roller coasters feel faster than cars? And how do seat belts keep us safe? Bob and Sanden take an epic drive in search for answers and popsicle sticks.

Brains On! is an award-winning audio show for kids and families from American Public Media.