$9.50 $7.50
“Why do parrots mimic human speech?
Why is yawning contagious?
Why does a basketball bounce?
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.”
Out of stock
$9.50 $7.50
$9.50 $7.50
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