ClassX Video Lessons Grade Grade 9

Category: Grade 9

How smudge-proof lipstick was invented | Moments of Vision 6 – Jessica Oreck

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How do animals experience pain? – Robyn J. Crook

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The mathematics of sidewalk illusions – Fumiko Futamura

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The myth of Icarus and Daedalus – Amy Adkins

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Why do people get so anxious about math? – Orly Rubinsten

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How Magellan circumnavigated the globe – Ewandro Magalhaes

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Secrets of the X chromosome – Robin Ball

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How did Dracula become the world’s most famous vampire? – Stanley Stepanic

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Can you solve the pirate riddle? – Alex Gendler

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The history of tea – Shunan Teng

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