05:26 Science & Technology Why does smoke follow you around a fire? Lesson duration 05:26 2,601,379 Views
04:33 Physical Science How big is a mole? (Not the animal, the other one.) Lesson duration 04:33 2,578,585 Views
05:10 Science & Technology Why don’t poisonous animals poison themselves? Lesson duration 05:10 2,575,568 Views
04:59 Science & Technology What happens when your DNA is damaged? Lesson duration 04:59 2,573,633 Views
04:17 Performing Arts The physics of the "hardest move" in ballet Lesson duration 04:17 2,552,011 Views
04:35 Science & Technology Is fire a solid, a liquid, or a gas? Lesson duration 04:35 2,529,624 Views
05:26 Science & Technology What happens if you cut down all of a city's trees? Lesson duration 05:26 2,521,830 Views
09:45 Science & Technology Why humans are so bad at thinking about climate change Lesson duration 09:45 2,516,121 Views
04:00 Science & Technology Why do these deadly insects look like flowers? Lesson duration 04:00 2,501,320 Views
03:48 Environmental Science How do pelicans survive their death-defying dives? Lesson duration 03:48 2,488,447 Views
05:02 Design, Engineering & Technology How rollercoasters affect your body Lesson duration 05:02 2,484,603 Views
05:48 Science & Technology Is human evolution speeding up or slowing down? Lesson duration 05:48 2,479,250 Views
04:59 Design, Engineering & Technology Why are airplanes slower than they used to be? Lesson duration 04:59 2,479,026 Views
13:50 Science & Technology Why does everything decay into lead? Lesson duration 13:50 2,472,490 Views
06:58 Science & Technology Why Don't Ants Get Stuck In Traffic? Lesson duration 06:58 2,417,244 Views
