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03:33
Rusting of Iron | #aumsum
13
B1 Intermediate
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01:42
Oxidation - Why do copper vessels turn green?…
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01:23
Concave Mirror - Why is your reflection upside…
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Why is nuclear fusion not used to generate electricity?…
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01:46
Rancidity - Why is a bag of chips half full? |…
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01:45
Why does a match light when you strike it? | #aumsum
16
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05:58
Volume of a Sphere | #aumsum
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04:19
Thermal Expansion - Why are gaps left between…
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05:28
Seed Germination | #aumsum
33
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03:41
Planets of the Solar System | Videos for Kids…
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01:06
Atmospheric Refraction - Why do stars twinkle?…
25
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08:06
3 Types of Rocks | #aumsum
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B2 High-Intermediate
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