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7th Grade (27)

The Science of Sleep

PL-6366
$6.99

Underwater Worlds

PL-6365
$6.99

A Guide to Time Travel

PL-6364
$6.99

It's a Numbers Game

PL-6363
$6.99

Infinity

PL-6362
$6.99

The Right Angle

PL-6361
$6.99

Money Doesn't Grow on Trees

PL-6360
$6.99

Monster Hunting

PL-6359
$6.99

The Man Who Changed the World

PL-6358
$6.99
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