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01:18
How do scars form? | #aumsum
18
B1 Intermediate
US
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01:01
Why are auroras formed? | #aumsum
17
B1 Intermediate
US
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01:41
Newtons 3rd Law - Why does a swimmer push the…
22
A2 Basic
US
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01:07
Why do heavier objects fall faster? | #aumsum
15
B1 Intermediate
US
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02:19
Buoyancy - Can you drown in the dead sea? | #aumsum
23
B2 High-Intermediate
US
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01:10
Why do we get freckles? | #aumsum
11
B1 Intermediate
US
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02:48
Water Pollution for Kids | #aumsum
31
B2 High-Intermediate
US
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06:14
Structure of a Neuron | #aumsum
17
B2 High-Intermediate
US
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02:02
Why is a convex mirror used as a rear view mirror?…
41
B2 High-Intermediate
US
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06:15
Layers of Soil for Kids | #aumsum
14
B2 High-Intermediate
US
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00:57
What causes body odor? | #aumsum
21
B2 High-Intermediate
US
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02:19
Respiration - Why is it not good to sleep under…
25
B2 High-Intermediate
US
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