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Impact 3 unit 5 vocabulary
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Animals ______ their wings to fly.
flap
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If you _________something, you show that it is true.
prove
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When talking about history or things in the past, ______means a very long time ago
EARLY
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Something that is __________is not solid in the middle; it has air or space inside.
hollow
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When animals ______, they change slowly over many generations in order to live better in their habitat.
evolve
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When you are ________at something, you have practised it enough to be really good at it.
skilled
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When a plane or rocket t______ o ________, it leaves the ground and starts flying.
takes off
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When something is P_________, it gets the energy that it needs to work from a certain source, such as fuel.
powered
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An object’s ______is how heavy it is
weight
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An _______is the part of a machine that uses fuel to supply power.
engine
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To ________something is to help it in some way.
support
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• Physical _______helped birds become better fliers.
adaptations
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An aeroplane A_______into the air at an angle.
ascends
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The ________of a plane or a bird is the distance from the tip of one wing to the other when the wings are spread open
wingspan
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When you have the ________to do something, you are able to do it.
capability
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Millions of years ago, all life was L_______ to land and water.
limited
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A helicopter ________slowly when it lands.
descends
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To _________is to move along through the air without much effort.
GLIDE
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Large birds can ______ when they spread their wings.
soar
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An aeroplane loses power when it runs out of F_______.
fuel
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______ happens when an animal or machine moves through the air.
Flight
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When a plane or a bird ________, it comes to the ground after being in the air. •
lands
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