Frog (See How They Grow) by DK Publishing

By DK Publishing

A photographic paperback sequence designed to introduce the attention-grabbing global of animals and the way they improve. during this informative and hugely visible sequence, attractive step by step images permits young children to determine a butterfly emerge from its cocoon and unfold its wings, or see what occurs while an egg hatches and a chick emerges. every one booklet comes with a decal sheet filled with lovable photographs of the animals featured within the booklet.

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After all, they had f lown the first airplane in the world. Just wait until next time. . 44 Afterword Many inventors dreamt of f lying. Why did the Wright brothers succeed? One reason was the way they looked at problems. Wilbur and Orville were curious. They saw problems as a chance to learn. Working step-by-step, they found solutions. The step-by-step search for knowledge is called the scientific method. There are five steps: 1. State the problem. 2. Brainstorm for solutions. 3. Try a solution.

Sixty years later, astronauts orbited Earth. Is Mars next? Curiosity and the scientific method make anything possible. 46 Glossary air pressure (AIR PRESH-ur): the force of air pushing on a surface data (DAY-tuh): information learned while testing a machine elevator (EH-luh-VAY-tur): a small extra wing that is used to steer an aircraft up or down lift (LIHFT): the force that pushes up on a wing pitch (PIHTCH): movement of an aircraft up or down roll (ROHL): movement of an aircraft from side to side vanes: (VAYNZ): the long rectangles in the tail of the Wright brothers’ aircraft wingspan (WIHNG-span): the length of an aircraft’s wings from tip to tip wing warping (WIHNG WAHR-pihng): twisting wings to steer an aircraft from side to side yaw (YAW): movement of an aircraft to the right or left 47 Bibliography Crouch, Tom D.

Smith, Norman F. Wings of Feathers, Wings of Flame: The Science and Technology of Aviation. Boston: Little, Brown, 1972. Willford, Neal. ” Sport Aviation, February 2002: 61–68. Wright, Orville. How We Invented the Airplane: An Illustrated History. New York: Dover, 1988.

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