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05:54 Thinking & Learning Can you solve the risky disk riddle? Lesson duration 05:54 Manage Library 1,160,476 Views
05:25 Science & Technology Why don’t we cover the desert with solar panels? Lesson duration 05:25 Manage Library 4,678,556 Views
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04:35 Social Studies What happened to the lost Kingdom of Kush? Lesson duration 04:35 Manage Library 939,259 Views
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05:18 The Arts The secrets of the world’s most famous symphony Lesson duration 05:18 Manage Library 1,706,316 Views
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05:52 History The rise and fall of the Lakota Empire Lesson duration 05:52 Manage Library 575,763 Views
15:13 Sex Education How porn changes the way teens think about sex - Emily F. Rothman Lesson duration 15:13 Manage Library 626,119 Views
05:29 Health What is MSG, and is it actually bad for you? Lesson duration 05:29 Manage Library 3,746,441 Views
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