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× How do Rockets use Air Pressure? $225.00
$225.00
× How do we Magnify Cells? $175.00
$175.00
× Where Does Food Go? $225.00
$225.00
× How do we Make Crystals? $175.00
$175.00
× Why do Leaves Change Color in Autumn? $225.00
$225.00

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Total $1,127.50