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00:57
How does blood clot? | #aumsum
17
B2 High-Intermediate
US
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02:27
Refraction of Light - Why does a pencil look bent…
24
A2 Basic
US
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01:31
What if we stopped drinking water? | #aumsum
45
B2 High-Intermediate
US
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01:06
Why do our teeth turn yellow? | #aumsum
18
B2 High-Intermediate
US
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01:02
How do fireflies glow? | #aumsum
48
B2 High-Intermediate
US
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02:31
Human Sense Organs | Videos for Kids | #aumsum
22
B1 Intermediate
US
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01:15
Why is curd not stored in copper containers? |…
38
B1 Intermediate
US
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00:51
Nervous System - Why dont we feel pain when we…
28
A2 Basic
US
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01:22
Why can't you use phones on planes? | #aumsum
75
B1 Intermediate
US
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01:03
Taste Buds - Why mint tastes cold? | #aumsum
13
B2 High-Intermediate
US
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01:01
Why do animals eyes glow in the dark? | #aumsum
25
B2 High-Intermediate
US
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01:01
Why does rain smell? | #aumsum
28
B1 Intermediate
US
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