https://www.khanacademy.org/science/class-9-chemistry/x46dd29ce84a663ea:is-matter-around-us-pure/x46dd29ce84a663ea:difference-between-pure-substances-and-mixtures/v/pure-substances-and-mixtures 2023-06-26T12:36:08.867767149Z Pure substances and Mixtures What is the difference between helium and air? Or iron and salt water? Let's find out! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Pure substances and Mixtures What is the difference between helium and air? Or iron and salt water? Let's find out! https://cdn.kastatic.org/ka-youtube-converted/r076_Q0xi60.mp4/r076_Q0xi60.mp4 1046 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/e/elements-compounds-and-mixtures-in 2026-02-26T09:10:46.921543588Z Elements, Compounds and mixtures Let's solve some questions on elements, compounds and mixtures Vibhor Pandey exercise https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/v/types-of-mixtures-middle-school-chemistry-khan-academy 2023-06-26T03:56:33.129173029Z Types of mixtures Mixing salt in water and sand in water gives two different types of mixtures. Let's learn what they are! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Types of mixtures Mixing salt in water and sand in water gives two different types of mixtures. Let's learn what they are! https://cdn.kastatic.org/ka-youtube-converted/gNJPKV1m_Ek.mp4/gNJPKV1m_Ek.mp4 191 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/e/homogeneous-and-heterogeneous-mixtures 2026-04-07T22:59:30.107127435Z Types of mixtures: Homogeneous and Heterogeneous mixtures LO1: Differences between pure and impure substances.  LO2: Differentiate between homogeneous and heterogeneous mixtures.   Revathi exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-3/x00110b31861f2508:methods-of-separation-in-everyday-life/v/sedimentation-and-decantation 2023-06-26T03:56:33.129173029Z Sedimentation and Decantation How do we separate the large insoluble solid sand particles from water? Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Sedimentation and Decantation How do we separate the large insoluble solid sand particles from water? https://cdn.kastatic.org/ka-youtube-converted/FOOt9JvS8H8.mp4/FOOt9JvS8H8.mp4 174 Separation of Substances https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-3/x00110b31861f2508:methods-of-separation-in-everyday-life/v/filtration 2023-06-26T03:56:33.129173029Z Filtration How can we separate water and tiny insoluble particles in it? Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Filtration How can we separate water and tiny insoluble particles in it? https://cdn.kastatic.org/ka-youtube-converted/rv6h2tw8-2M.mp4/rv6h2tw8-2M.mp4 212 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/v/sublimation 2023-06-26T03:56:33.129173029Z Sublimation How can we separate two solids from each other? Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Sublimation How can we separate two solids from each other? https://cdn.kastatic.org/ka-youtube-converted/c7EuQrvXtDU.mp4/c7EuQrvXtDU.mp4 212 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/v/in-vaporisation 2023-06-26T03:56:33.129173029Z Vaporisation How can we separate dissolved salt from water? Let's find out!  Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Vaporisation How can we separate dissolved salt from water? Let's find out!  https://cdn.kastatic.org/ka-youtube-converted/iqR4KWWZRSo.mp4/iqR4KWWZRSo.mp4 103 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/v/condensation 2023-06-26T03:56:33.129173029Z Condensation Water vapor can change back to its liquid state. What is it called? Let's watch it happen! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Condensation Water vapor can change back to its liquid state. What is it called? Let's watch it happen! https://cdn.kastatic.org/ka-youtube-converted/wjBz-Nk6wZk.mp4/wjBz-Nk6wZk.mp4 108 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/v/distillation-in 2023-06-26T03:56:33.129173029Z Distillation How can we separate water from dissolved salt? Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Distillation How can we separate water from dissolved salt? https://cdn.kastatic.org/ka-youtube-converted/eeg6ykexyi8.mp4/eeg6ykexyi8.mp4 168 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/v/chromatography 2023-06-26T03:56:33.129173029Z Chromatography The blue ink in your pin is made up of many different colors! We can even separate them! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Chromatography The blue ink in your pin is made up of many different colors! We can even separate them! https://cdn.kastatic.org/ka-youtube-converted/SMVQq2--W2A.mp4/SMVQq2--W2A.mp4 194 Separation of Substances https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-1/x017c12e57b64cfa8:untitled-210/e/methods-of-separation-part-i 2026-04-07T23:36:17.218592739Z Methods of separation LO: Understand the various separation methods like threshing, handpicking, evaporation, condensation, filtration, sedimentation, decantation, chromatography etc. Revathi exercise