Mark Rober

Name: SCIENCE CLASS #1- WHY Does Helium Make Your Voice Higher?
Uploaded: 2020-03-23T20:47:42.000Z
Description: Live stream with demos your brain will enjoy where we answer a basic question every time. Does farting make you weigh more or less?!?! Place your guess and give me feedback too- https://forms.gle/gqNw9Ht83Vzo2va4A