Preview Episodes and Activities
Structures and Mechanisms
Available in
days
days
after you enroll
- What If Humans Didn't Make Any Garbage? (5:45)
- What If You Built a House Out of Jello? (5:58)
- What If All Cars were Replaced with Bicycles? (5:51)
- What If Plastic Didn't Exist? (5:56)
- What If Humans Never Invented the Wheel? (6:01)
- What If There Was No Gravity? (5:52)
- What If Humans Never Invented the Elevator? (6:24)
- What If a Magnitude 20 Earthquake Hits? (6:38)
- What If We Built an Elevator to Space? (5:41)