Match the following (i) Wings a. make the body light (ii) Hollow bones b. is when wings move upwards (iii) Upstroke c. help the birds to fly (iv) Tail d. help move the wings (v) Strong muscles e. helps change direction

Wings help the birds to fly high in the sky. Hollow bones make the body of a bird light so that they can make effortless flight. Birds like ostrich cannot fly because their body is too large and heavy for them to make a flight. Upstroke movement is when the wings move upwards and backwards. Wings get folded as they go backwards. Tail helps a bird to change its direction in course of flight. They help a bird make or maintain body balance while perching. Strong muscles are present in flight muscles of birds which help them flap their wings and make strokes in air. (i) Wings a. help the birds to fly (ii) Hollow bones b. make the body light (iii) Upstroke c. is when wings move upwards (iv) Tail d. helps change direction (v) Strong muscles e. help move the wings

E M B I B E

EXPANDED Universal Science 3>Chapter 4 - Birds>ASSESSMENT ZONE>Q C

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EXPANDED Universal Science 3>Chapter 4 - Birds>ASSESSMENT ZONE>Q E

Match the following

(i) Wings	a. make the body light
(ii) Hollow bones	b. is when wings move upwards
(iii) Upstroke	c. help the birds to fly
(iv) Tail	d. help move the wings
(v) Strong muscles	e. helps change direction