{"id":62559,"date":"2022-06-20T11:00:43","date_gmt":"2022-06-20T05:30:43","guid":{"rendered":"https:\/\/www.cbselabs.com\/?p=62559"},"modified":"2022-06-20T11:26:06","modified_gmt":"2022-06-20T05:56:06","slug":"ncert-exemplar-class-6-science-chapter-8","status":"publish","type":"post","link":"https:\/\/www.cbselabs.com\/ncert-exemplar-class-6-science-chapter-8\/","title":{"rendered":"NCERT Exemplar Class 6 Science Chapter 8 Body Movements"},"content":{"rendered":"
NCERT Exemplar Class 6 Science Chapter 8 Body Movements are part of NCERT Exemplar Class 6 Science<\/a>. Here we have given NCERT Exemplar Class 6 Science Solutions Chapter 8 Body Movements.<\/p>\n Multiple Choice Questions<\/strong><\/p>\n Question 1. Question 2. Question 3. Question 4. Question 5. Question 6. Short Answer Type Questions<\/strong><\/p>\n Question 7. Question 8. Question 9. Solution:<\/p>\n Question 10. Short Anser Type Questions<\/p>\n Question 11.NCERT Exemplar Class 6 Science Solutions Chapter 8 Body Movements<\/h2>\n
\nWhich of the following parts of our body help us in movement?
\n(i) Bones
\n(ii) Skin
\n(iii) Muscles
\n(iv) Organs
\nChoose the correct answer from the option below.
\n(a) (i) and (iii)
\n(b) (ii) and (iv)
\n(c) (i) and (iv)
\n(d) (ii) and (iii)
\nSolution:
\n(a): Bones form the structural framework of body called skeleton. The skeleton along with muscles, helps our body parts to move. Muscles are like elastic bands which are attached to the bones by means of tough connecting bands called tendons. The muscles move the bones by their pull. Muscles cannot push. Therefore, to move the bone in one direction, at least two sets of muscles are required. A pair of two types of muscles help the bone to move. One of them contracts and becomes shorter, stiffer and thicker. This pulls the bone in one direction. The other muscle of the pair relaxes when one contracts. To move the bone in the opposite direction, the relaxed muscle contracts itself and brings the bone back to its original position. This time, the first muscle is relaxed.<\/p>\n
\nWhich of the following joints is immovable?
\n(a) Shoulder and arm
\n(b) Knee and joint
\n(c) Upper jaw and skull
\n(d) Lower jaw and upper jaw
\nSolution:
\n(c): Upper jaw and skull has immovable joints. In this type of joints there is no movement between the bones involved. So, these joints are immovable and fixed.<\/p>\n
\nWhich of the following organisms does not have both muscles and skeleton for movement?
\n(a) Dog
\n(b) Snail
\n(c) Earthworm
\n(d) Human being
\nSolution:
\n(None) : Earthworm does not have a skeleton. It has two sets of muscles one that makes it long and thin and the other that makes it fat. The contraction and relaxation of
\nthese muscles help in movement. Snails have exoskeleton and muscles. Human beings and dogs have endoskeleton and muscles.<\/p>\n
\nUnderwater divers wear fin-like flippers on their feet to
\n(a) swim easily in water
\n(b) look like a fish
\n(c) walk on water surface
\n(d) walk over the bottom of the sea(sea bed).
\nSolution:
\n(a): While swimming, the muscle in the front part contracts, generating a curve on one side like a wave and the fin-like flippers move on the opposite direction exerting force against the surrounding water that push the underwater divers forward.<\/p>\n
\nSnail moves with the help of its
\n(a) shell
\n(b) bone
\n(c) muscular foot
\n(d) whole body.
\nSolution:
\n(c) : During locomotion, the muscular foot of the snail comes outside and attaches to the ground. It forms a series of a wave like motion which helps the snail move forward. The foot of a snail has a special gland that produces a slimy mucus to make slippery track to help it move smoothly.<\/p>\n
\nHow many muscles work together to move a bone?
\n(a) One
\n(b) Two
\n(c) Three
\n(d) Four
\nSolution:
\n(b): Two
\nRefer to answer 1.<\/p>\n
\nName the type of joint of your hand which help you to grasp a badminton racquet.
\nSolution:
\nHinge joints present in our fingers help us to grasp the things.<\/p>\n
\nWhat would have happened if our backbone was made of one single bone?
\nSolution:
\nWe would not have been able to bend and twist our back if our backbone was made of one single bone.<\/p>\n
\nProvide one word answers to the statements given below.<\/p>\n\n
\n
\nWrite the type of joint which is used for each of the following movements.
\n(a) A cricket bowler bowls the ball.
\n(b) A girl moves her head in right and left direction.
\n(c) A person lifts weights to build up his biceps.
\nSolution:
\n(a) Hinge joint and ball and socket joint
\n(b) Pivotal joint
\n(c) Hinge joint<\/p>\n
\nMatch the name of the animals given in Column I with its body parts used for movement given in Column II.<\/p>\n