A Wonderleaf question

a real page from the book
Airplanes fly because fast-moving air around their shaped wings creates lift, an upward force strong enough to balance the plane's weight. Engines push the plane forward, air flows over and under the wings, and the wing shape helps pressure differ above and below.
A plane also has to manage thrust, drag, and weight while it climbs, turns, and lands. Small hinged parts on the wings and tail help pilots steer. On landing, extra flaps help the plane stay steady at slower speeds before the wheels meet the runway.
Hold a strip of paper under your lower lip and blow across the top to watch moving air lift it.
Watercolour scenes, straight answers, about three minutes cover to cover.
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