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UNIT 5 VOCABULARY

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    Impact 3 & Flying High
  •   Study   Slideshow
  • 1. Wings probably ....... from body features of insects' aquatic ancestors.
    Evolve
  •  15
  • 2. Scientists look for evidence to .... that birds evolved from dinosaurs.
    Prove
  •  15
  • 3. The ancient Chinese were ..... at kite-making.
    skilled
  •  15
  • 4. Da Vinci's glider might have worked if its design had allowed for more .... movement.
    stable
  •  15
  • 5. A pterosaur's bones and muscles were strong enough to ..... its great weight in the air.
    support
  •  15
  • 6. Gravity is the ....... that pulls objects down towards the Earth.
    force
  •  15
  • 7. True flight is the flight that is ..... by a source of energy.
    powered
  •  15
  • 8. The Wright Brothers' Flyer was controlled by a .....
    pilot
  •  15
  • 9. Leonardo Da Vinci drew designs for flying machines including a glider and a .....
    parachute
  •  15
  • 10. Icarus powered himself towards the sun by ... his wings.
    flapping
  •  20
  • 11. Animals have not always had the ...... to fly.
    capability
  •  15
  • 12. Unit 5 Explorer, Ryan Carney, investigates the theory that ..... in birds originated from "the ground up" and not from "the trees down".
    flight
  •  15
  • 13. It is believed that birds first learned to ..... before eventually flying.
    glide
  •  20
  • 14. The Wright Brothers' last plane landed only because it ran out of ....
    fuel
  •  15
  • 15. The research shows that some birds learnt to fly because of their light, .... wings.
    hollow
  •  20
  • 16. The .... of the first reptiles was over 10 metres.
    wingspan
  •  20