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Para arriba y para abajo, hacia el frente y hacia atrás, para los lados o alrededor. Descubre cómo se mueven las cosas y qué hace que paren en este libro sobre el movimiento.
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Darlene R. Stille is a science writer and author of more than 80 books for young people. When she was in high school, she fell in love with science. While attending the University of Illinois, she discovered that she also loved writing. She was fortunate enough to find a career as an editor and writer that allowed her to combine both of her interests. Darlene lives and writes in Michigan.
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