Body Movements: Class 6 Science Q&A
34 free answers on Body Movements (Science) for Class 6 students, across CBSE, ICSE and State boards. Includes questions such as “What is a good example of a flowchart of the human digestive system?”, “Name the organ used by: (a) Fish during swimming (b) Earthworms during moving”, “Describe the skeletal system. Write any two functions of it.”
Question & Answer
Questions
- ScienceClass 6CBSE
What is a good example of a flowchart of the human digestive system?
FOOD INTAKE | v [MOUTH] - Teeth chew (mechanical digestion) - Saliva adds amylase (begins breaking down starch) | v [PHARYNX / THROAT] - Food swallowed; epiglottis closes the airway | v [ESOPHAGUS] - Muscular tube carries food via peristalsis (wave-like contractions) | v [STOMACH] - Gastric acid (HCl) + pepsin break down proteins - Churning turns food into semi-liquid chyme (2-4 hours) | v [SMALL
- ScienceClass 6CBSE
Name the organ used by: (a) Fish during swimming (b) Earthworms during moving
(a) Fish use their muscular tail and fins for swimming. (b) Earthworms move by contracting and expanding their body muscles, helping them crawl forward.
- ScienceClass 6CBSE
Give one location for each of the following in our body. (i) Hinge joint (ii) Gliding joint
(i) A hinge joint is found in the knee and elbow. (ii) A gliding joint is found between the bones of the backbone.
- ScienceClass 6CBSE
Describe the skeletal system. Write any two functions of it.
The skeletal system is the framework of bones and cartilage that supports and gives shape to the body. In humans, it consists of 206 bones along with cartilage. It includes parts such as the skull, backbone, ribs, breastbone, arms, legs, shoulder bones, and hip bones. Functions of the skeletal system: It provides structure and shape to the body. It protects delicate internal organs like the brain, hea
- ScienceClass 6CBSE
How does a fish swim?
A fish swims with the help of its streamlined body, which reduces resistance while moving in water. Its body is shaped like a spindle, allowing it to glide easily. Fish use their muscular tail to push themselves forward, while their fins help in balancing and changing direction. The coordinated movement of tail and fins enables smooth swimming.
- ScienceClass 6CBSE
What is a backbone?
The backbone, also known as the vertebral column, is a long structure that extends from the skull to the hip. It is made up of 33 small bones called vertebrae, which are joined together in a chain-like manner. The backbone supports the body, helps us stand upright, and protects the spinal cord, which is an important part of the nervous system.
- ScienceClass 6CBSE
What are joints? Name them.
Joints are the places in the body where two or more bones meet. They allow movement and flexibility. At the joints, bones are held together by strong tissues called ligaments. There are different types of joints in the human body, including: Fixed joints (do not allow movement, e.g., skull) Ball and socket joints (allow movement in all directions) Hinge joints (allow movement in one direction, like
- ScienceClass 6CBSE
Define cartilage. Where is it found in the body?
Cartilage is a soft and flexible connective tissue that is not as hard as bone. It can be bent easily without breaking. Cartilage is present in various parts of the body such as the joints, where it helps reduce friction between bones, and in the ear, where it provides shape and support. It is also found in the nose and other parts of the body.
- ScienceClass 6CBSE
Describe the snail.
A snail is a small, soft-bodied animal that has a hard outer shell covering its body. This shell protects the snail from danger but does not help in its movement. The snail can come out of an opening in the shell when needed. It moves using a muscular structure called the foot, which is located on the underside of its body (belly). The snail moves very slowly in a wavy motion by contracting and relaxing its muscles.
- ScienceClass 6CBSE
What is an organ?
An organ is a group of different tissues that work together to perform a specific function in the body. Each organ has a particular role. For example, the stomach helps in digestion of food, and the heart pumps blood throughout the body. Several organs working together form an organ system, such as the digestive system or circulatory system.
- ScienceClass 6CBSE
Which of the skull bones is movable?
The lower jaw, also known as the mandible, is the only movable bone in the skull. This movable bone allows us to open and close our mouth. Because of this movement, we can chew food, speak, laugh, and sing. All other bones in the skull are fixed and joined together to protect the brain.
- ScienceClass 6CBSE
What is a ball and socket joint?
A ball and socket joint is a type of joint in which the rounded end (ball) of one bone fits into the hollow space (socket) of another bone. This arrangement allows movement in all directions, including rotation. It is one of the most flexible types of joints in the human body. A common example is the joint between the thigh bone (femur) and the hip bone. Another example is the shoulder joint. These joints enable us to perform activities like walking, running, and moving our arms
- ScienceClass 6CBSE
How is the skeleton of a bird well-suited for flying?
Following features make the skeleton of a bird well – suited for flying: Bones are hollow and Shape of the body is streamlined which helps to move easily in Bones of hind limbs are specialized for walking, hopping and Bones of forelimbs are modified into wings for Breastbones hold flight muscles and are used to move the wings up and Shoulder bones are
- ScienceClass 6CBSE
1. (a) Unscramble the jumbled words and write them in the blank spaces provided. (i) neosb …………………………. (ii) tnemevom ……………………….. (iii) iontcaronct …………………….. (iv) lsecsum …………………………. (v) arctigeal ……………………… (vi) epahs……………………….. (vii) sangro inerlant………………… (viii) laxaeriont ……………………… (b) Read the following paragraph and fill in the blanks using the words you unscrambled. (a) and (b) form the skeleton of the human body. They provide the framework, give (c) to the body and help in (d) _. They protect the (e) _. The bones are moved by alternate (f) _ and (g) _of two sets of (h) _ attached to them.
Here are the correct words: (a) Bones movement Contraction Muscles Cartilage Shape Internal organs Relaxation (b) Bones Cartilage shape movement Internal organs Contraction Relaxation Muscles
- ScienceClass 6CBSE
Earthworms are known as ‘farmer’s friends’. Why?
Solution: Earthworms are called ‘farmer’s friends’ because they improve the texture and quality of soil. By burrowing into the soil, they make the soil loose, thus allowing air to pass through it and water to drain from it. It gets easier for soil to breathe. Earthworms also increase soil fertility by excreting the undigested materials into the soil.
- ScienceClass 6CBSE
Which type of movement would have been possible if (a) our elbow had a fixed joint. we were to have a ball and socket joint between our neck and head.
Solution: If our elbow had a fixed joint there won’t be any Only movements like pointing to something etc could be possible. We would be able to rotate our head in all directions e., in 360°.
- ScienceClass 6CBSE
Bones are hard structures and cannot be bent. But, we can still bend our elbow, knee, etc. How is this possible?
Due to the presence of different types of joints between the bones we are able to bend our body parts such as elbow, knee, back etc. Elbow and knee are not made up of a single bone but two or more bones which are joined to each other by hinge joint. This joint along with the muscles help us to bend the elbow and knee.
- ScienceClass 6CBSE
Boojho fell off a tree and hurt his ankle. On examination the doctor confirmed that the ankle was fractured. How was it detected?
Solution: Doctor must have detected a swelling in the injured area and taken an X-ray of the ankle. By using X-ray technique, images show the desired part of the bones in our body. By looking at the x-ray, doctor could have confirmed fracture in the ankle.
- ScienceClass 6CBSE
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. (a) Duck (b) Horse (c) Kangaroo (d) Snail (e) Snake (f) Fish (g) Human beings Cockroach
Solution: Duck – Walking, Flying, Swimming Horse – Running, Walking Kangaroo – Jumping Snail – Creeping, Crawling Snake – Slithering Fish – Swimming Human beings – Walking, Running, Jumping, Swimming, Crawling Cockroach – Walking, Flying, Running
- ScienceClass 6CBSE
1. Write the type of joint which is used for each of the following movements. (a) A cricket bowler bowls the ball. (b) A girl moves her head in right and left direction. A person lifts weights to build up his biceps.
Hinge joint and ball and socket joint Pivotal joint Hinge joint