things that fly
Natural
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Man mad
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Bugs
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Plane
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Birds
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Paper aeroplanes
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Dragons
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Helicopters
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Dinosaurs
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Balloons
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Bat
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Jet
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Lift:where the air pressure is greater under the wing than on top of the wing
Drag:the force to slow down a plane/bird
Thrust:the forward movement of a plane or bird
Gravity:the downward force on a plane or bird
Aerofoil: the shape of the wings of planes and some birds
Bernoulli effect: the more wind under the wing forces the wing up crating lift when the wing is in a aerofoil shape 
Activity 1: Your challenge is to hold a rectangular piece of paper close to your mouth, blow across the top of it and get the paper to move down. Sounds simple enough but give it a go and see if you change your mind.
What is happening?
What is happening?
the paper will rise and you will get light headed
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