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04:49 Social Studies The breathtaking courage of Harriet Tubman Lesson duration 04:49 Manage Library 1,849,293 Views
03:10 Science & Technology Where does the smell of rain come from? Lesson duration 03:10 Manage Library 803,403 Views
04:34 Social Studies A day in the life of an ancient Egyptian doctor Lesson duration 04:34 Manage Library 6,447,716 Views
03:51 Earth and Space Science How your split ends can help clean oil spills Lesson duration 03:51 Manage Library 2,774,080 Views
04:40 Mathematics How exactly does binary code work? Lesson duration 04:40 Manage Library 1,467,603 Views
04:26 Science & Technology What is the coldest thing in the world? Lesson duration 04:26 Manage Library 1,450,806 Views
03:12 Thinking & Learning Is Google killing your memory? Lesson duration 03:12 Manage Library 246,097 Views
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03:32 Earth and Space Science Does aloe vera really treat a sunburn? Lesson duration 03:32 Manage Library 398,165 Views
02:57 Health Are multivitamins really good for you? Lesson duration 02:57 Manage Library 731,277 Views
03:37 Science & Technology Can we survive the sun's death? Lesson duration 03:37 Manage Library 5,508,256 Views
03:39 Design, Engineering & Technology The physics of roller coasters Lesson duration 03:39 Manage Library 751,234 Views
05:10 Science & Technology Why don’t poisonous animals poison themselves? Lesson duration 05:10 Manage Library 2,564,833 Views
04:52 Health Are there universal expressions of emotion? Lesson duration 04:52 Manage Library 419,833 Views
04:46 Mathematics Can you solve the Mondrian squares riddle? Lesson duration 04:46 Manage Library 1,184,852 Views
04:46 Life Sciences What do food expiration dates actually mean? Lesson duration 04:46 Manage Library 265,207 Views
05:50 Health How much of what you see is a hallucination? Lesson duration 05:50 Manage Library 4,720,265 Views
05:13 Health The psychology of post-traumatic stress disorder Lesson duration 05:13 Manage Library 3,068,937 Views
