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Humans achieved flight by studying birds. Their wings are curved on top and flat underneath. Their wings are designed to create lift. Birds also flap their wings. This movement creates thrust. Airplanes use engines to create thrust.

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The propeller supplies thrust for this plane. The thrust is stronger than the drag. The wings have a classic airfoil shape. They help provide lift. Without enough lift and thrust, gravity would cause the plane to fall.

Activities

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Making Connections

Text-to-Self

Have you ever been in an airplane? If yes, how did you like it? If no, would you want to ride in an airplane? Where would you want to go?

Text-to-Text

Have you read other books about airplanes? What new information did you learn?

Text-to-World

You learned about how airplanes move. How does this compare to how other vehicles move?

Teacher Resources

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