Bones, Muscles and Postures - 2 Class 2 Worksheet Science

Q1: Multiple Choice Questions (MCQs)

(i) Which part of our body gives us shape and support?
(a) Skin
(b) Muscles
(c) Bones
(d) Heart
Ans: (c)
Bones give our body shape and support. They are like a strong frame.

(ii) Which of the following is responsible for helping us move our body parts?
(a) Lungs
(b) Brain
(c) Bones
(d) Stomach
Ans: (c)
Bones work with muscles to help us move our body parts.

(iii) What do we call the red liquid that flows in our veins and arteries?
(a) Water
(b) Juice
(c) Blood
(d) Milk
Ans: (c)
The red liquid that flows in our veins and arteries is called blood.
(iv) Which of the following helps us to stand up straight?
(a) Jumping
(b) Sleeping
(c) Walking
(d) Posture
Ans: (d)
Posture is how we hold our body while standing, sitting, or lying down. It helps us stand up straight.

(v) Which part of our body helps us pick up things and hold them?
(a) Eyes
(b) Ears
(c) Hands
(d) Feet
Ans: (c)
Our hands help us pick up things and hold them.

Q2: Fill in the Blanks

(i) Our body has a framework made of hard ______________.
Ans: bones

(ii) Muscles help us to ______________ our arms and legs.
Ans: move

(iii) The longest bone in our body is the ______________.
Ans: femur

(iv) We need to sit and stand with a straight ______________.
Ans: posture

(v) Our heart pumps ______________ around our body.
Ans: blood

Q3: Short Answer Questions

(i) How do bones help protect our body?
Ans: Bones protect our body by forming a strong framework around vital organs like the brain, heart, and lungs. For example, the skull protects the brain, and the ribcage shields the heart and lungs.

(ii) What are muscles, and how do they work?
Ans: Muscles are soft tissues in our body that help us move. When we want to move a body part, our brain sends signals to the muscles, which contract or get shorter. This contraction pulls on the bones, causing movement.

(iii) Why is it important to have a balanced diet for strong bones?
Ans: A balanced diet provides the nutrients like calcium and vitamin D that are necessary for strong bones. Calcium makes bones strong, and vitamin D helps the body absorb calcium. Foods like milk, fruits, and vegetables help keep our bones healthy.

(iv) What is a posture, and why should we maintain a good posture?
Ans: Posture is how we hold our body. Good posture means standing, sitting, and walking with our back straight and shoulders relaxed. Maintaining good posture is important because it helps prevent back and neck pain.

(v) What happens when we exercise our muscles regularly?
Ans: When we exercise our muscles regularly, they become stronger and more flexible. Exercise also improves blood circulation and keeps our muscles healthy. It's like giving our muscles a workout to make them better at moving our body.