https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/v/light-travels-in-a-straight-line 2023-06-26T03:56:33.129173029Z Light travels in a straight line Let's find out if light travels in a straight line through an interesting activity! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Light travels in a straight line Let's find out if light travels in a straight line through an interesting activity! https://cdn.kastatic.org/ka-youtube-converted/EasN5Z8kElg.mp4/EasN5Z8kElg.mp4 75 Light, Shadows and images https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/e/luminous-and-non-luminous-objects 2026-04-08T00:16:02.937952483Z Light and its Characteristics LO1: Light and its characteristics (natural/artificial source of light, speed, travels in a straight line etc).  LO2: Luminous and Non-luminous Objects   Revathi exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-2/x00110b31861f2508:materials-around-us/v/opaque-transparent-and-translucent 2023-06-26T03:56:33.129173029Z Opaque, transparent and translucent Light doesn't pass through all materials. Materials can be categorised according to that property! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Opaque, transparent and translucent Light doesn't pass through all materials. Materials can be categorised according to that property! https://cdn.kastatic.org/ka-youtube-converted/Bc8UvDA3WfE.mp4/Bc8UvDA3WfE.mp4 183 Light, Shadows and images https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/v/how-shadows-are-formed 2025-01-08T02:31:40.424345982Z How Shadows are Formed Discover how shadows are formed! Learn about rectilinear propagation of light, shadow formation, and how shadow sizes change with movement. Explore with a fun activity in this engaging science video! Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw How Shadows are Formed Discover how shadows are formed! Learn about rectilinear propagation of light, shadow formation, and how shadow sizes change with movement. Explore with a fun activity in this engaging science video! https://cdn.kastatic.org/ka-youtube-converted/f6_kp6jcdIM.mp4/f6_kp6jcdIM.mp4 180 Light, Shadows and images https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/e/how-are-shadows-formed 2026-04-08T01:15:04.085520103Z How are Shadows formed? Let's do some questions! vibhor exercise https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:reflection-of-light-at-plane-surfaces/x17f7017799a605d2:6-1-formation-of-image-by-a-pinhole-camera/v/pinhole-camera 2025-11-05T05:50:51.757820624Z Pinhole Camera Did you know you can capture an image with just a box, a tiny hole, and some light—no lens, no electronics? That’s the magic of a pinhole camera! Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Pinhole Camera Did you know you can capture an image with just a box, a tiny hole, and some light—no lens, no electronics? That’s the magic of a pinhole camera! https://cdn.kastatic.org/ka-youtube-converted/sH0WZgjp_zQ.mp4/sH0WZgjp_zQ.mp4 342 Light, Shadows and images https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:reflection-of-light-at-plane-surfaces/x17f7017799a605d2:6-1-formation-of-image-by-a-pinhole-camera/e/pinhole-camera 2026-04-07T22:59:30.107127435Z Pinhole camera Explore how a pinhole camera forms inverted images using light that travels in straight lines. Understand image formation, brightness, and construction of this simple optical device through interactive questions. Yajurva Joshi exercise