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Ocean Animals Series (NEW!)

Ocean Animals Series (NEW!)

$39.90 $79.80
Mythology Marvels Series (NEW!)

Mythology Marvels Series (NEW!)

$19.95 $39.90
Got Math! Series (NEW!)

Got Math! Series (NEW!)

$49.88 $99.75
The Human Machine Series (NEW!)

The Human Machine Series (NEW!)

$32.79 $65.58
Natural Laboratories: Scientists in National Parks Series (NEW!)

Natural Laboratories: Scientists in National Parks Series (NEW!)

$29.93 $59.85
Nature-Inspired Innovations Series (NEW!)

Nature-Inspired Innovations Series (NEW!)

$49.88 $99.75
Taking Earth's Temperature Series (NEW!)

Taking Earth's Temperature Series (NEW!)

$53.46 $106.92
So You Wanna Be Series (NEW!)

So You Wanna Be Series (NEW!)

$98.37 $196.74
Let's Find Out! Sports Series (NEW!)

Let's Find Out! Sports Series (NEW!)

$48.90 $97.80
Let's Find Out! Social Studies Skills Series (NEW!)

Let's Find Out! Social Studies Skills Series (NEW!)

$73.35 $146.70
Let's Find Out! Religion Series (NEW!)

Let's Find Out! Religion Series (NEW!)

$61.13 $122.25
Let's Find Out! Biomes Series (NEW!)

Let's Find Out! Biomes Series (NEW!)

$73.35 $146.70
Nature's Mysteries II Series (NEW!)

Nature's Mysteries II Series (NEW!)

$51.35 $102.69
Living Legends of Sports III Series (NEW!)

Living Legends of Sports III Series (NEW!)

$80.55 $161.10
Exploring Energy Technology Series (NEW!)

Exploring Energy Technology Series (NEW!)

$67.13 $134.25
The Universe and Our Place in It Series (NEW!)

The Universe and Our Place in It Series (NEW!)

$108.75 $217.50
Think Like A Scientist Series (NEW!)

Think Like A Scientist Series (NEW!)

$73.35 $146.70
Societies and Cultures: Russia Series (NEW!)

Societies and Cultures: Russia Series (NEW!)

$74.80 $149.60
Understanding Economics Series (NEW!)

Understanding Economics Series (NEW!)

$93.98 $187.95
Living Legends of Sports II Series (NEW!)

Living Legends of Sports II Series (NEW!)

$67.13 $134.25
Let's Find Out! Plants Series (NEW!)

Let's Find Out! Plants Series (NEW!)

$73.35 $146.70
Evolving Technology Series (NEW!)

Evolving Technology Series (NEW!)

$81.75 $163.50
Let's Find Out! Good Health Series (NEW!)

Let's Find Out! Good Health Series (NEW!)

$73.35 $146.70
Checks and Balances in the U.S. Government Series (NEW!)

Checks and Balances in the U.S. Government Series (NEW!)

$74.80 $149.60

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