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03:32 Earth and Space Science Does aloe vera really treat a sunburn? Lesson duration 03:32 Manage Library 385,277 Views
03:37 Science & Technology Can we survive the sun's death? Lesson duration 03:37 Manage Library 5,506,145 Views
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04:46 Life Sciences What do food expiration dates actually mean? Lesson duration 04:46 Manage Library 262,617 Views
07:38 Environmental Science What can we learn from insect cribs? Lesson duration 07:38 Manage Library 82,783 Views
05:32 Social Studies How one scientist averted a national health crisis Lesson duration 05:32 Manage Library 1,901,770 Views
04:52 Science & Technology What would it be like to live on the moon? Lesson duration 04:52 Manage Library 488,571 Views
04:47 Science & Technology Are naked mole rats the strangest mammals? Lesson duration 04:47 Manage Library 580,615 Views
06:10 Science & Technology The journey to Pluto, the farthest world ever explored Lesson duration 06:10 Manage Library 3,079,526 Views
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08:43 Science & Technology Time: the history & future of everything Lesson duration 08:43 Manage Library 10,100,978 Views
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03:30 Design, Engineering & Technology How do touchscreens work? Lesson duration 03:30 Manage Library 1,107,435 Views
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