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03:59
Seasons on Earth | Videos for Kids | #aumsum
19
B1 Intermediate
US
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03:39
Why do we hear echoes? | #aumsum
19
B1 Intermediate
US
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04:07
What if we planted a Trillion Trees? | #aumsum
18
B2 High-Intermediate
US
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03:14
What if the Sun Disappeared? | #aumsum
18
B2 High-Intermediate
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04:24
Why is nuclear fusion not used to generate electricity?…
17
B2 High-Intermediate
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03:56
Mitosis - Why does a lizard's tail grow back?…
16
B2 High-Intermediate
US
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04:54
Why are flamingos pink? plus 4 more videos.. #aumsum
15
B2 High-Intermediate
US
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03:41
Diffusion | #aumsum
15
B2 High-Intermediate
US
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03:16
Why do you fall backwards when a bus starts suddenly?…
15
A2 Basic
US
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04:39
Potential and Kinetic Energy for Kids | #aumsum
14
B1 Intermediate
US
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04:20
What if you fell into a Black Hole? | #aumsum
13
B1 Intermediate
US
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03:11
Soil Formation for Kids | #aumsum
13
B1 Intermediate
US
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