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02:11 Nature of Science Questions no one knows the answers to Lesson duration 02:11 Manage Library 1,177,170 Views
06:02 Nature of Science The secret life of plankton Lesson duration 06:02 Manage Library 2,066,897 Views
08:28 Earth and Space Science Deep ocean mysteries and wonders Lesson duration 08:28 Manage Library 1,146,031 Views
03:49 Algebra How folding paper can get you to the moon Lesson duration 03:49 Manage Library 6,311,027 Views
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07:32 Nature of Science How simple ideas lead to scientific discoveries Lesson duration 07:32 Manage Library 3,082,947 Views
