https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/v/skywatching 2024-12-29T07:21:40.948705593Z Skywatching Learn about the horizon, zenith, nadir, celestial sphere, celestial poles, meridian, celestial equator, and ecliptic in this video. Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Skywatching Learn about the horizon, zenith, nadir, celestial sphere, celestial poles, meridian, celestial equator, and ecliptic in this video. https://cdn.kastatic.org/ka-youtube-converted/R5v1b_pBCdc.mp4/R5v1b_pBCdc.mp4 440 Beyond Earth https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/e/sky-watching 2026-04-07T23:17:37.123726494Z Sky-watching Let's practice vibhor exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/v/constellations 2024-12-29T07:21:40.948705593Z Constellations Explore constellations like Great Bear, Orion, Scorpio, and Cassiopeia, and learn how they connect to sun signs in this video! Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Constellations Explore constellations like Great Bear, Orion, Scorpio, and Cassiopeia, and learn how they connect to sun signs in this video! https://cdn.kastatic.org/ka-youtube-converted/YmDO8yXk1sg.mp4/YmDO8yXk1sg.mp4 328 Beyond Earth https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/e/constellations 2026-04-07T23:55:07.30621384Z Constellations Let's practice vibhor exercise https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-in-space/x87d03b443efbea0a:the-solar-system/v/the-solar-system-ms 2024-01-04T21:44:22.995765104Z The solar system Our solar system, formed from a nebula, consists of the sun, eight planets, asteroids, and comets. The inner planets, Mercury, Venus, Earth, and Mars, are rocky, while the outer planets, Jupiter, Saturn, Uranus, and Neptune, are gas giants. The asteroid belt separates these two groups, and the Oort cloud, filled with comets, lies beyond Neptune. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/b8fab4c8-cc6b-4c1c-808c-ae49dbbe513d_1280_720_base.png The solar system Our solar system, formed from a nebula, consists of the sun, eight planets, asteroids, and comets. The inner planets, Mercury, Venus, Earth, and Mars, are rocky, while the outer planets, Jupiter, Saturn, Uranus, and Neptune, are gas giants. The asteroid belt separates these two groups, and the Oort cloud, filled with comets, lies beyond Neptune. https://cdn.kastatic.org/ka-youtube-converted/wTyqO-tfs7Q.mp4/wTyqO-tfs7Q.mp4 296 Beyond Earth https://www.khanacademy.org/science/middle-school-earth-and-space-science/x87d03b443efbea0a:earth-in-space/x87d03b443efbea0a:the-solar-system/e/understand-the-solar-system 2025-06-18T15:00:50.065121331Z Understand: the solar system Check your understanding of the solar system in this set of free practice questions aligned to NGSS standards. Lauren Rosebrugh exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/v/comets-and-meteors 2025-01-27T07:36:54.139191702Z Comets and Meteors Learn what comets are made of, why their tails always point away from the sun, and explore famous ones like Halley's Comet and Neowise. Also Learn about meteors, meteorites and meteoroids. Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Comets and Meteors Learn what comets are made of, why their tails always point away from the sun, and explore famous ones like Halley's Comet and Neowise. Also Learn about meteors, meteorites and meteoroids. https://cdn.kastatic.org/ka-youtube-converted/HszZZjA7jE4.mp4/HszZZjA7jE4.mp4 424 Beyond Earth https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/e/comets-and-meteors 2026-04-08T00:54:09.631945657Z Comets and Meteors Let's do some questions! vibhor exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/v/stars-and-galaxies 2025-06-23T19:44:56.951671442Z Stars and galaxies Learn about Sun-like stars, red giants, supernovae, binary stars, and variable stars. Dive into the shapes of galaxies, including our own Milky Way Galaxy. Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Stars and galaxies Learn about Sun-like stars, red giants, supernovae, binary stars, and variable stars. Dive into the shapes of galaxies, including our own Milky Way Galaxy. https://cdn.kastatic.org/ka-youtube-converted/BH4q7oSsFVU.mp4/BH4q7oSsFVU.mp4 430 Beyond Earth https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/e/types-of-stars 2026-04-08T00:16:02.937952483Z Stars and Galaxies Let's do some questions! vibhor exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:beyond-earth/v/the-moon 2025-07-29T05:19:20.326225883Z The Moon Explore the mysteries of the Moon in this fun and fact-packed video. Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw The Moon Explore the mysteries of the Moon in this fun and fact-packed video. https://cdn.kastatic.org/ka-youtube-converted/PEplWMXI1YQ.mp4/PEplWMXI1YQ.mp4 304 Beyond Earth