$9.50 $7.50
“Why are there meteors?
Why does a crocodile cry?
Why does preserved food last longer?
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.”
$9.50 $7.50
$9.50 $7.50
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