Science & Health

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Ecosystems

MSRP:

Was: $19.99

Now: $10.99
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Weather and Water

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Now: $19.99
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Health and the Human Mind

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Now: $19.99
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Space Science

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Now: $19.99
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Motion and Simple Machines

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Now: $19.99
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Health and the Physical Body

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Now: $19.99
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Wonders of Energy

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Was:

Now: $19.99
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Chemistry

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Was:

Now: $19.99
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Marine Biology

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Now: $19.99
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Geology

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Was:

Now: $19.99
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Botany

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Was:

Now: $19.99
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Mammals

MSRP:

Was: $19.99

Now: $16.49