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20
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01:09
Why do strawberries have seeds on the outside?…
16
B2 High-Intermediate
US
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00:51
Why do koalas hug trees? | #aumsum
62
B2 High-Intermediate
US
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06:45
Solid Shapes for Kids | #aumsum
16
B2 High-Intermediate
US
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04:39
Newtons Third Law of Motion | #aumsum
2
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06:11
Covalent Bonding | #aumsum
10
B2 High-Intermediate
US
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00:57
Why are two thin blankets warmer than one thick…
24
A2 Basic
US
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03:29
Tooth Structure for Kids | #aumsum
40
B2 High-Intermediate
US
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00:54
Why are flamingos pink? | #aumsum
52
B2 High-Intermediate
US
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01:30
Oxidation - Why do papers turn yellow? | #aumsum
38
B1 Intermediate
US
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01:11
Why do we have seasons? | #aumsum
20
B2 High-Intermediate
US
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20:11
How does a plastic comb attract paper? plus 9…
12
B1 Intermediate
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01:05
How do dolphins sleep? | #aumsum
49
B2 High-Intermediate
US
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