https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-2/x017c12e57b64cfa8:untitled-229/v/bones-versus-cartilage 2025-12-14T15:40:46.316426832Z Bones versus Cartilage In this video, we explore a simple question: How can your nose be both soft and firm at the same time? The answer takes us into the world of bones and cartilage — two important connective tissues that shape and support our body. Students will learn: ✔ Why bones are hard, strong, and essential for support and protection ✔ Why cartilage is soft and flexible, helping us bend, twist, and move comfortably ✔ How cartilage cushions our joints and prevents bones from rubbing ✔ Why babies have more cartilage and what happens as they grow By the end, learners will understand how bones and cartilage work together like a perfect team to keep our bodies strong, stable, and flexible. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Bones versus Cartilage In this video, we explore a simple question: How can your nose be both soft and firm at the same time? The answer takes us into the world of bones and cartilage — two important connective tissues that shape and support our body. Students will learn: ✔ Why bones are hard, strong, and essential for support and protection ✔ Why cartilage is soft and flexible, helping us bend, twist, and move comfortably ✔ How cartilage cushions our joints and prevents bones from rubbing ✔ Why babies have more cartilage and what happens as they grow By the end, learners will understand how bones and cartilage work together like a perfect team to keep our bodies strong, stable, and flexible. https://cdn.kastatic.org/ka-youtube-converted/OLRsuFknNI8.mp4/OLRsuFknNI8.mp4 259 Structure and Functions of Animals https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-2/x017c12e57b64cfa8:untitled-229/v/joints 2025-02-24T07:39:06.722383375Z Joints Learn about movable and immovable joints, and dive into the functions of hinge joints, ball and socket joints, and gliding joints. Discover how these joints work together to help us move, bend, and stay stable. By the end of this video, you'll know: - The difference between movable and immovable joints. - How hinge joints, like in your elbows, help you bend. - Why ball and socket joints, like your shoulders, allow full range of motion. - How gliding joints in your vertebral column provide smooth movement while bending. Great for students, teachers, or anyone curious about how our bodies move! Don't forget to like, subscribe, and share for more fun biology lessons. Timestamps: 0:00 Intro 0:39 Immovable and Movable Joints 1:17 Types of movable joints 1:26 Hinge Joint 2:20 Ball and Socket Joint 4:01 Gliding Joint 5:13 Recap Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Joel Prakash Stephen Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Joints Learn about movable and immovable joints, and dive into the functions of hinge joints, ball and socket joints, and gliding joints. Discover how these joints work together to help us move, bend, and stay stable. By the end of this video, you'll know: - The difference between movable and immovable joints. - How hinge joints, like in your elbows, help you bend. - Why ball and socket joints, like your shoulders, allow full range of motion. - How gliding joints in your vertebral column provide smooth movement while bending. Great for students, teachers, or anyone curious about how our bodies move! Don't forget to like, subscribe, and share for more fun biology lessons. Timestamps: 0:00 Intro 0:39 Immovable and Movable Joints 1:17 Types of movable joints 1:26 Hinge Joint 2:20 Ball and Socket Joint 4:01 Gliding Joint 5:13 Recap Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Joel Prakash Stephen https://cdn.kastatic.org/ka-youtube-converted/7dZB56GpJFM.mp4/7dZB56GpJFM.mp4 341 Structure and Functions of Animals https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-2/x017c12e57b64cfa8:untitled-229/e/functions-of-joints-and-cartilages 2026-04-07T23:36:17.218592739Z Functions of joints and cartilages LO: Functions of joints and cartilages Revathi exercise https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-2/x017c12e57b64cfa8:untitled-229/v/human-skin 2025-02-24T07:39:06.722383375Z Human Skin Explore the layers of the skin—epidermis, dermis, and hypodermis—and learn about their unique roles. Discover how the skin acts as a protective barrier, regulates body temperature, and even supports sensory perception. Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Human Skin Explore the layers of the skin—epidermis, dermis, and hypodermis—and learn about their unique roles. Discover how the skin acts as a protective barrier, regulates body temperature, and even supports sensory perception. https://cdn.kastatic.org/ka-youtube-converted/QpWLcSah4lc.mp4/QpWLcSah4lc.mp4 284 Structure and Functions of Animals https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-2/x017c12e57b64cfa8:untitled-229/e/movement-in-animals 2025-08-04T12:23:36.052124233Z Movement in animals Let's solve some questions on movements in animals Vibhor Pandey exercise