Science ·Class 9 Science

Activity 3.3 Let us perform, To identify different connective tissues in the human body. Class 9

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· Jul 01, 2026 · Reviewed & updated Sep 17, 2026 · 1 min read

Activity 3.3 Let us perform

Aim: To identify different connective tissues in the human body through daily simple life actions and undersatand their functions.

Procedure:

Table: Your experiences, observations and questions from daily life

Action	Experience	Function	Identified connective tissue
Touch your elbow gently	A hard and rigid structure	Gives strength, support and protection	Bone [Fig (b)]
Press and fold your ear or gently press your nose and stop	A soft and flexible structure that retains shape again	Provides flexibility and cushions the ends of bones for shock absorption	Cartilage [Fig (c)]
Touch your forearm muscles and wiggle your fingers	Feel movement in the forearm even though fingers are far away	Connects muscle to bone, and thus, brings about movement	Tendon [Fig (c)]
Sit on a chair and move your leg upwards till your knee allows	The joint does not go beyond a limit	Connects bone to bone and provides stability, limits movement, and helps prevent dislocation	Ligament [Fig (c)]

Observation:

Touching the elbow feels hard and rigid, indicating the presence of bone, which provides structural strength and protection to the body.
The ear and nose feel soft and flexible, and return to their original shape when released, indicating the'presence of cartilage, which provides cushioning and flexibility.
Touching the forearm muscles while wiggling fingers shows that movement is transmitted from the muscles even to distant parts, indicating the role of tendons in connecting muscles to bones.
The knee joint stops movement at a fixed limit, indicating the role of ligaments in connecting bones and preventing excessive or dislocating movement.