Body Movements Class 6 Worksheet Science Chapter 5

Q1: Multiple Choice Questions (MCQs)

(i) What is the primary function of the human skeleton?
(a) To produce red blood cells
(b) To support and protect the body
(c) To facilitate digestion
(d) To generate body heat
Ans: (b)
The human skeleton's main function is to support and protect the body.

(ii) Which type of joint allows movement in only one direction, similar to a door hinge?
(a) Ball-and-socket joint
(b) Hinge joint
(c) Pivot joint
(d) Gliding joint
Ans: (b)
Hinge joints, like the elbow, allow movement in only one direction, like a door hinge.

(iii) What is the primary function of the rib cage in the human body?
(a) To aid in digestion
(b) To protect the heart and lungs
(c) To support the legs
(d) To produce red blood cells
Ans: (b)
The rib cage's primary function is to protect the heart and lungs.

(iv) Which animals have an exoskeleton, an external hard skeleton on the outside of their bodies?
(a) Fish
(b) Birds
(c) Insects
(d) Mammals
Ans: (c)
Insects have an exoskeleton, which is a hard external skeleton.

(v) How do fish primarily propel themselves forward in water?
(a) By flapping their fins
(b) By spinning in circles
(c) By crawling on the ocean floor
(d) By jumping out of the water
Ans: (a)
Fish primarily propel themselves forward by flapping their fins in water.

Q2: Fill in the Blanks

(i) Animals like corals, sea cucumbers, and sponges, which do not move, live in a fixed place but can move their body parts, are called _______________.
Ans: sessile

(ii) The human skeleton consists of a framework of ___________ bones.
Ans: 206

(iii) _____________ hold the bones together at movable joints in the human body.
Ans: Ligaments

(iv) Snakes move by sliding their bodies, and their under surface is covered with scales, which help them _______________ to the ground.
Ans: press

(v) The unique flying adaptation in birds is their _______________ that provide lift and balance.
Ans: feathers

Q3: Match the Column (In a Table)

Match the type of joint with its description.

Ans: 

Q4: True or False

(i) The vertebral column supports the chest.
Ans: False
The vertebral column supports the skull, rib cage, and pelvis, not the chest.

(ii) The human skull consists of 22 bones, all of which are movable.
Ans: False
The human skull consists of 22 bones, but not all of them are movable; many are fused to form immovable joints.

(iii) Snails use their slimy foot to move and protect themselves.
Ans: True
Snails use their slimy foot to move and produce hardened mucus to protect themselves.

(iv) Bats are the only mammals that can fly.
Ans: True
Bats are the only mammals with the ability to fly.

(v) The human pelvic girdle forms the pelvic cavity, protecting the digestive organs.
Ans: False
The human pelvic girdle forms the pelvic cavity, but it protects the reproductive and excretory organs, not the digestive organs.