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20
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04:48
What if Earth Stopped Spinning? | #aumsum
30
B1 Intermediate
US
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04:20
What if we Swallow Chewing Gum? | #aumsum
42
B2 High-Intermediate
US
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04:41
What if there was No Gravity on Earth? | #aumsum
32
B1 Intermediate
US
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04:20
What if you fell into a Black Hole? | #aumsum
31
B1 Intermediate
US
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04:29
What if Dinosaurs Never went Extinct? | #aumsum
31
B2 High-Intermediate
US
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03:14
What if the Sun Disappeared? | #aumsum
38
B2 High-Intermediate
US
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04:21
Do Smartphones make our Eyes Worse? | #aumsum
88
B2 High-Intermediate
US
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04:28
What causes Heartburn? | #aumsum
63
B2 High-Intermediate
US
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04:39
Why does soda fizz when you shake it? | #aumsum
14
B2 High-Intermediate
US
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04:54
Why are flamingos pink? plus 4 more videos.. #aumsum
30
B2 High-Intermediate
US
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03:56
Mitosis - Why does a lizard's tail grow back?…
31
B2 High-Intermediate
US
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03:28
How do ears help with balancing? | #aumsum
27
B1 Intermediate
US
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