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7th Grade (36)

The Science of Sleep

PL-6366
$7.50

Underwater Worlds

PL-6365
$7.50

A Guide to Time Travel

PL-6364
$7.50

It's a Numbers Game

PL-6363
$7.50

Infinity

PL-6362
$7.50

The Right Angle

PL-6361
$7.50

Money Doesn't Grow on Trees

PL-6360
$7.50

Monster Hunting

PL-6359
$7.50

The Man Who Changed the World

PL-6358
$7.50
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