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03:10 Science & Technology Where does the smell of rain come from? Lesson duration 03:10 Manage Library 804,000 Views
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03:32 Earth and Space Science Does aloe vera really treat a sunburn? Lesson duration 03:32 Manage Library 398,399 Views
03:37 Science & Technology Can we survive the sun's death? Lesson duration 03:37 Manage Library 5,508,433 Views
05:10 Science & Technology Why don’t poisonous animals poison themselves? Lesson duration 05:10 Manage Library 2,566,733 Views
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07:38 Environmental Science What can we learn from insect cribs? Lesson duration 07:38 Manage Library 83,138 Views
05:32 Social Studies How one scientist averted a national health crisis Lesson duration 05:32 Manage Library 1,923,026 Views
04:52 Science & Technology What would it be like to live on the moon? Lesson duration 04:52 Manage Library 511,791 Views
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05:07 Science & Technology When will the next ice age happen? Lesson duration 05:07 Manage Library 1,707,558 Views
08:43 Science & Technology Time: the history & future of everything Lesson duration 08:43 Manage Library 10,240,633 Views
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04:51 Science & Technology Which is stronger: Glue or tape? Lesson duration 04:51 Manage Library 14,006,083 Views
