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 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 https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/e/transparent-translucent-and-opaque 2026-04-08T00:16:02.937952483Z Transparent, Translucent and Opaque Objects LO: Transparent, Translucent and Opaque Revathi exercise 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 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/middle-school-earth-and-space-science/x87d03b443efbea0a:the-earth-sun-moon-system/x87d03b443efbea0a:solar-eclipses/v/solar-eclipses 2022-10-18T23:43:41.917641962Z Solar eclipses A solar eclipse occurs when the moon casts a shadow on part of Earth. For those inside the shadow, the sun's disk is fully blocked from view. Solar eclipses can occur only during a new moon, when the moon and the sun are on the same side of Earth. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/4c74c630-bd3c-43e4-96a5-25e3325fe286_1280_720_base.png Solar eclipses A solar eclipse occurs when the moon casts a shadow on part of Earth. For those inside the shadow, the sun's disk is fully blocked from view. Solar eclipses can occur only during a new moon, when the moon and the sun are on the same side of Earth. https://cdn.kastatic.org/ka-youtube-converted/cVh7sTN-uNc.mp4/cVh7sTN-uNc.mp4 200 Light https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:the-earth-sun-moon-system/x87d03b443efbea0a:the-moon-and-its-motions/v/lunar-eclipses 2022-09-02T06:03:36.513343189Z Lunar eclipses A lunar eclipse occurs when Earth casts a shadow on the moon. When the shadow fully covers the moon, the eclipse is total. When the shadow partially covers the moon, the eclipse is partial. Lunar eclipses can occur only during a full moon, when the moon and the sun are on opposite sides of Earth. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/7c3d9a22-7ac2-404f-898b-0e58c62cc478_1280_720_base.png Lunar eclipses A lunar eclipse occurs when Earth casts a shadow on the moon. When the shadow fully covers the moon, the eclipse is total. When the shadow partially covers the moon, the eclipse is partial. Lunar eclipses can occur only during a full moon, when the moon and the sun are on opposite sides of Earth. https://cdn.kastatic.org/ka-youtube-converted/WXSHQK56Bfs.mp4/WXSHQK56Bfs.mp4 127 Light https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/e/shadow-and-eclipses 2026-04-07T23:17:37.123726494Z Shadow and Eclipses LO: Shadow and Eclipses Revathi exercise