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01:12
Is Gluten bad for you? | #aumsum
38
B1 Intermediate
US
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01:31
Sublimation - Why do mothballs disappear over…
27
A2 Basic
US
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01:06
How do glasses work? | #aumsum
57
B2 High-Intermediate
US
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01:42
Oxidation - Why do copper vessels turn green?…
16
B1 Intermediate
US
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01:23
Concave Mirror - Why is your reflection upside…
37
B1 Intermediate
US
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01:46
Rancidity - Why is a bag of chips half full? |…
12
B2 High-Intermediate
US
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01:45
Why does a match light when you strike it? | #aumsum
10
B2 High-Intermediate
US
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01:06
Atmospheric Refraction - Why do stars twinkle?…
21
B1 Intermediate
US
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02:24
Force, Work and Energy for Kids | #aumsum
22
A2 Basic
US
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01:02
Why do we get car sickness? | #aumsum
35
B2 High-Intermediate
US
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01:00
What causes brain freeze? | #aumsum
18
B2 High-Intermediate
US
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01:00
Why do babies get jaundice? | #aumsum
12
B1 Intermediate
US
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