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Remove item Thumbnail image Product Price Quantity Subtotal
× What is the difference between Floating and Sinking? $175.00
$175.00
× How do Lungs Help Breathing? $225.00
$225.00
× What is Density? $225.00
$225.00
× Why the Sky is Blue? $225.00
$225.00

Cart totals

Subtotal $850.00
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Total $935.00