NCERT Class VI Science Solutions: Chapter 8 – Body Movements Part 3

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Question 12:

Given below is a list of different types of movements in animals.

Running, Jumping, Walking, Slithering,

Crawling, Flying, Swimming, Creeping

Write the types of movements seen in each animal.

  1. Duck

  2. Kangaroo

  3. Snake

  4. Human beings

  5. Horse

  6. Snail

  7. Fish

  8. Cockroach

Answer:

  1. Duck – flying, walking, swimming.

  2. Horse - running, walking.

  3. Kangaroo - jumping, walking.

  4. Snail – creeping.

  5. Snake – slithering.

  6. Fish – swimming.

  7. Human being – walking.

  8. Cockroach - walking, flying.

    Image of various animals

    Image of Various Animals

    Image of various animals

Question 13:

Boojho fell off a tree and hurt his ankle. On examination the doctor confirmed that the ankle was fractured. How vas it detected?

Answer:

The doctor must have observed a swelling and taken an X-ray of the ankle. X-ray images confirm injuries/fractures in bones.

Question 14:

Bones are hard structures and cannot be bent. But, we can still bend our elbow, knee, etc. How is this possible?

Answer:

Elbow and knee are not made tip of a single bone, but two or more bones which are joined to each other by a joint (Hinge joint). This joint along with the muscles help us to bend the elbow and knee.

Question 15:

Which type of movement would have been possible if.

  1. Our elbow had a fixed joint.

  2. We were to have a ball and socket joint between our neck and head.

Answer:

  1. We would not be able to bend/fold our arms.

  2. We would be able to rotate our head .

Question 16:

Earthworms are known as ‘farmer’s friends’. Why?

Answer:

An earthworm eats its way through the soil. Its body excretes the undigested materials that makes the soil fertile.

Image of earthworms

Image of Earthworms

Image of earthworms