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Happy Dragon 100k Whys Series 74 – Why Are Gemstones Colourful?
SKU 9789819403547
$9.50
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Why do gymnasts rub powder on their palms before competing?
Why do airplanes shake during flight?
Why do dogs bury their food in the ground?
Why…
Why this? Why that? There are many questions one can easily ask but hard to get the right answers. Come to think of it, there are many scientific mysteries hidden in our everyday life.
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