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02:34 Science & Technology How big is the biggest star? Lesson duration 02:34 Manage Library 18,669,920 Views
03:57 Physical Science The science of macaroni salad: What's in a mixture? Lesson duration 03:57 Manage Library 627,340 Views
04:51 Literature What's the definition of comedy? Banana. Lesson duration 04:51 Manage Library 495,050 Views
04:52 Environmental Science What's below the tip of the iceberg? Lesson duration 04:52 Manage Library 508,016 Views
03:25 Physical Science What is chemical equilibrium? Lesson duration 03:25 Manage Library 933,972 Views
03:46 Earth and Space Science A rare, spectacular total eclipse of the sun Lesson duration 03:46 Manage Library 1,092,468 Views
04:27 Linguistics A brief history of plural word...s Lesson duration 04:27 Manage Library 892,919 Views
03:45 Numbers & Operations The infinite life of pi Lesson duration 03:45 Manage Library 1,603,322 Views
04:23 Life Sciences Myths and misconceptions about evolution Lesson duration 04:23 Manage Library 3,063,612 Views
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04:33 Life Sciences If superpowers were real: Invisibility Lesson duration 04:33 Manage Library 1,436,157 Views
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06:45 Life Sciences If superpowers were real: Body mass Lesson duration 06:45 Manage Library 1,430,584 Views
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04:30 Environmental Science Vermicomposting: How worms can reduce our waste Lesson duration 04:30 Manage Library 1,949,132 Views
04:14 Earth and Space Science Is there a center of the universe? Lesson duration 04:14 Manage Library 638,451 Views