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20
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02:00
Why is oxalic acid used to remove rust stains?…
21
B1 Intermediate
US
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05:51
Why do Snakes have Forked (Split) Tongue? | #aumsum
5
B1 Intermediate
US
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06:06
Why do humans Love Music? | #aumsum
14
B1 Intermediate
US
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01:39
Human Tears - Why do onions make you cry? | #aumsum
15
B2 High-Intermediate
US
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01:06
How do pain relievers work? | #aumsum
7
B1 Intermediate
US
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00:56
Why is dry ice so dangerous? | #aumsum
7
B1 Intermediate
US
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01:05
Why do we see only one side of the moon? | #aumsum
12
B2 High-Intermediate
US
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06:25
Basic Multiplication for kids | #aumsum
29
B1 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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01:25
Why do we get dandruff? | #aumsum
22
B2 High-Intermediate
US
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06:36
Why is it hard to cure Alzheimers disease? | #aumsum
19
B1 Intermediate
US
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01:24
Why do woolen clothes keep us warm? | #aumsum
12
B1 Intermediate
US
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