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× What are Magnets? $595.00
$595.00
× What is the function of Wheels, Pulleys, and Gears? $225.00
$225.00
× Motion & Forces $695.00
$695.00
× How are Lenses used in Telescopes? $225.00
$225.00

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Subtotal $1,740.00
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Total $1,914.00