https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:electrical-conductivity-of-liquids/x17f7017799a605d2:electrical-conductivity/e/do-liquids-conduct-electricity 2026-02-04T12:43:01.546240976Z Do liquids conduct electricity? “Do liquids conduct electricity?” Explore conduction in everyday liquids using bulb/LED/compass testers; compare acids, bases, and salts vs sugar; understand good vs poor conductors (conditional conduction); and learn wet-hands safety. Yajurva Joshi exercise https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:electrical-conductivity-of-liquids/x17f7017799a605d2:electroplating/v/electroplating 2025-11-27T08:20:41.697789345Z Electroplating Discover how electricity can make metals shine! In this video, we explore electroplating, the process of coating one metal with another using electricity. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Electroplating Discover how electricity can make metals shine! In this video, we explore electroplating, the process of coating one metal with another using electricity. https://cdn.kastatic.org/ka-youtube-converted/xxhSuIIJFTM.mp4/xxhSuIIJFTM.mp4 363 The Amazing World of Solutes, Solvents, and Solutions https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:electrical-conductivity-of-liquids/x17f7017799a605d2:electroplating/e/electroplating 2026-04-07T23:36:17.218592739Z Electroplating “Electroplating” — Explore how thin metal layers are deposited on objects, why industries use this process, the chemistry behind it, and its real-life applications, safety, and quality aspects. Yajurva Joshi exercise https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:electrical-conductivity-of-liquids/x17f7017799a605d2:electrolytic-cell/v/electrolytic-cell 2025-11-13T03:50:37.26912651Z Electrolytic cell In this video, we explore the fascinating world of electrolytic cells devices that use electricity to make chemical reactions happen that wouldn’t occur on their own. We start with lightning and the formation of ozone in nature, then bring that concept into the lab to understand how electricity can drive chemical change. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Electrolytic cell In this video, we explore the fascinating world of electrolytic cells devices that use electricity to make chemical reactions happen that wouldn’t occur on their own. We start with lightning and the formation of ozone in nature, then bring that concept into the lab to understand how electricity can drive chemical change. https://cdn.kastatic.org/ka-youtube-converted/PwYIq_ZazXY.mp4/PwYIq_ZazXY.mp4 327 The Amazing World of Solutes, Solvents, and Solutions https://www.khanacademy.org/science/ncert-class-8-science/x55541eeaec8b3a9a:chemical-effects-of-electric-current/x55541eeaec8b3a9a:solute-solvents-and-solutions/e/solute-solvent-and-solutions 2026-04-08T00:16:02.937952483Z Solute, Solvent and Solutions This exercise will help you explore the fascinating world of solutions — what makes them different from non-uniform mixtures, how to identify solute and solvent, and why air and even Gulab jamun syrup count as solutions! Bitasta Datta exercise https://www.khanacademy.org/science/ms-chemistry/xc370bc422b7f75fc:physical-properties-of-matter/xc370bc422b7f75fc:density/v/density-equation 2025-02-13T17:59:34.347326855Z Density equation Density measures how tightly matter is packed into a given space, calculated by dividing mass by volume (D = m/V). Knowing a substance’s density can help identify it. For irregular objects, scientists often measure volume using water displacement, where the volume change in water shows the object’s volume. Combining this measurement with the object’s mass provides a way to identify materials accurately regardless of their shape. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/3f882a3e-fe05-47b2-97df-a67b4da3a00d_1280_720_base.png Density equation Density measures how tightly matter is packed into a given space, calculated by dividing mass by volume (D = m/V). Knowing a substance’s density can help identify it. For irregular objects, scientists often measure volume using water displacement, where the volume change in water shows the object’s volume. Combining this measurement with the object’s mass provides a way to identify materials accurately regardless of their shape. https://cdn.kastatic.org/ka-youtube-converted/rW_33U7-8u8.mp4/rW_33U7-8u8.mp4 388 The Amazing World of Solutes, Solvents, and Solutions https://www.khanacademy.org/science/ms-chemistry/xc370bc422b7f75fc:physical-properties-of-matter/xc370bc422b7f75fc:density/e/understand-density 2026-03-11T01:40:33.014543209Z Understand: density Check your understanding of density in this set of free, standards-aligned practice questions. Allen Ruch exercise https://www.khanacademy.org/science/ms-chemistry/xc370bc422b7f75fc:physical-properties-of-matter/xc370bc422b7f75fc:density/e/apply-density 2026-04-07T22:59:30.107127435Z Apply: density Apply your understanding of density in this set of free, standards-aligned practice questions. Allen Ruch exercise