https://www.khanacademy.org/science/class-9-chemistry/x46dd29ce84a663ea:matter-in-our-surroundings/x46dd29ce84a663ea:states-of-matter/v/states-of-matter-in 2025-08-06T20:09:57.016070308Z States of matter (Bonus video) How many states of matter exist? How do they differ? Let's find out! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw States of matter (Bonus video) How many states of matter exist? How do they differ? Let's find out! https://cdn.kastatic.org/ka-youtube-converted/QkiULYmCO3g.mp4/QkiULYmCO3g.mp4 735 States of matter https://www.khanacademy.org/science/class-9-chemistry/x46dd29ce84a663ea:matter-in-our-surroundings/x46dd29ce84a663ea:states-of-matter/v/effect-of-temp-and-pressure-on-state-change 2023-06-26T12:36:08.867767149Z Effect of temp and pressure on state change Can matter change its state upon changing the temperature and pressure? Let's find out! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Effect of temp and pressure on state change Can matter change its state upon changing the temperature and pressure? Let's find out! https://cdn.kastatic.org/ka-youtube-converted/gx0vGzZfuOQ.mp4/gx0vGzZfuOQ.mp4 321 States of matter https://www.khanacademy.org/science/bridge-course-class-11th-chemistry/x426c9d2c554669cb:states-of-matter/x426c9d2c554669cb:properties-of-matter/v/evaporation-and-its-cooling-effect 2023-06-26T12:36:08.867767149Z Evaporation and its cooling effect Why does our body feel cool when we sweat? Or why does water remain cool in earthen pots? Let's find out! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Evaporation and its cooling effect Why does our body feel cool when we sweat? Or why does water remain cool in earthen pots? Let's find out! https://cdn.kastatic.org/ka-youtube-converted/RtzzCrfZAL8.mp4/RtzzCrfZAL8.mp4 238 States of matter https://www.khanacademy.org/science/bridge-course-class-11th-chemistry/x426c9d2c554669cb:states-of-matter/x426c9d2c554669cb:properties-of-matter/e/the-states-of-matter 2026-03-31T17:10:02.146417456Z The states of matter. Let's solve a few problems to identify the different states of matter and their properties. Aanchal Arora exercise https://www.khanacademy.org/science/bridge-course-class-11th-chemistry/x426c9d2c554669cb:states-of-matter/x426c9d2c554669cb:properties-of-matter/e/evaporation-and-its-cooling-effects 2026-03-06T08:00:40.725301347Z Evaporation and its cooling effects Let's solve some questions on evaporation and its cooling effects Vibhor Pandey exercise