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HOW DO HOT AIR BALLOONS WORK?

Original price was: $26.65.Current price is: $21.32.

HOW DO HOT AIR BALLOONS WORK?

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HOW DO FIRE TRUCKS WORK?

Original price was: $26.65.Current price is: $21.32.

HOW DO FIRE TRUCKS WORK?

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How Do Dinosaurs Go to Sleep? (Board)

Original price was: $6.99.Current price is: $4.89.

How Do Dinosaurs Go to Sleep? (Board)

How Come?: Every Kid’s Science Questions Explained

$16.95

How Come?: Every Kid’s Science Questions Explained

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How Do Computers Follow Instructions?

Original price was: $9.99.Current price is: $7.99.

How Do Computers Follow Instructions?

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HOW DO CLOUDS FORM?

Original price was: $21.27.Current price is: $18.08.

HOW DO CLOUDS FORM?

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HOW DO BABY ANIMALS LEARN?

Original price was: $21.27.Current price is: $18.08.

HOW DO BABY ANIMALS LEARN?

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HOW DO ANIMALS HIDE

Original price was: $18.60.Current price is: $14.88.

HOW DO ANIMALS HIDE

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How Do Animals Give Us Food?

Original price was: $24.65.Current price is: $18.49.

How Do Animals Give Us Food?

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HOW DO ANIMALS COMMUNICATE?

Original price was: $26.60.Current price is: $21.28.

HOW DO ANIMALS COMMUNICATE?

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HOW DO AIRPLANES FLY? : BOOK ABOUT AIR

Original price was: $3.95.Current price is: $3.16.

HOW DO AIRPLANES FLY? : BOOK ABOUT AIR

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HOW DINOSAURS REALLY WORK!

Original price was: $17.99.Current price is: $12.59.

HOW DINOSAURS REALLY WORK!