https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-2/x04828215b460a495:the-world-of-microorganisms-part-i-ii/v/classification-understanding-microorganism-middle-school-science-khan-academy 2025-01-08T02:29:38.725066879Z Classification of Microorganisms Discover how microorganisms are grouped into categories like bacteria, fungi, algae, protozoa, and viruses based on their shape, structure, and life processes. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Classification of Microorganisms Discover how microorganisms are grouped into categories like bacteria, fungi, algae, protozoa, and viruses based on their shape, structure, and life processes. https://cdn.kastatic.org/ka-youtube-converted/Q-eLlmnf72g.mp4/Q-eLlmnf72g.mp4 444 Useful and harmful microorganisms https://www.khanacademy.org/science/mh-grade-9-bridge-course-science/x109ad1e366099af5:living-world-and-classificaiton-of-microbes/x109ad1e366099af5:classification-of-microorganisms/v/friend-or-foe-understanding-microorganism-middle-school-science-khan-academy 2025-01-08T02:29:38.725066879Z Microorganisms: Friend or Foe? Learn how helpful microorganisms contribute to soil fertility, food production, antibiotics, vaccines, and even environmental cleanup. At the same time, discover how harmful microorganisms can spoil food and cause diseases. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Microorganisms: Friend or Foe? Learn how helpful microorganisms contribute to soil fertility, food production, antibiotics, vaccines, and even environmental cleanup. At the same time, discover how harmful microorganisms can spoil food and cause diseases. https://cdn.kastatic.org/ka-youtube-converted/LqL492kifkU.mp4/LqL492kifkU.mp4 372 Useful and harmful microorganisms https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-2/x04828215b460a495:the-world-of-microorganisms-part-i-ii/e/lo-5-1-micro-organisms-fundamentals 2026-04-06T02:41:58.374508961Z Micro-organisms (Fundamentals) Let's solve some problems to better understands some fundamental properties of micro-organisms. Aakash Bagga exercise https://www.khanacademy.org/science/mh-grade-8-science/x0f256b8de9c7cf34:living-world-and-classificaiton-of-microbes/x0f256b8de9c7cf34:classification-of-microorganisms/v/what-are-viruses 2025-06-02T20:42:58.649337325Z What are Viruses? Are viruses living or non-living? Dive into their unique characteristics, how they infect cells, and see real examples like bacteriophage, rotavirus, coronavirus, and influenza in this fun science video! Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw What are Viruses? Are viruses living or non-living? Dive into their unique characteristics, how they infect cells, and see real examples like bacteriophage, rotavirus, coronavirus, and influenza in this fun science video! https://cdn.kastatic.org/ka-youtube-converted/XoDUY7pMkU0.mp4/XoDUY7pMkU0.mp4 417 Useful and harmful microorganisms https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-2/x04828215b460a495:the-world-of-microorganisms-part-i-ii/v/antimicrobial-resistance 2025-06-19T04:39:32.416182101Z Antimicrobial Resistance Learn how antimicrobial resistance develops! Explore the history of antibiotics, how they work, and how bacterial mutations lead to resistance — plus solutions — in this engaging middle school science video. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/mh-grade-8-science?lang=en Timestamps: 0:00 Historical Intro 0:55 Working of Antibiotics 1:49 Mutations 4:19 Solution Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Joel Prakash Stephen Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Antimicrobial Resistance Learn how antimicrobial resistance develops! Explore the history of antibiotics, how they work, and how bacterial mutations lead to resistance — plus solutions — in this engaging middle school science video. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/mh-grade-8-science?lang=en Timestamps: 0:00 Historical Intro 0:55 Working of Antibiotics 1:49 Mutations 4:19 Solution Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Joel Prakash Stephen https://cdn.kastatic.org/ka-youtube-converted/TzszIMs4xdU.mp4/TzszIMs4xdU.mp4 420 Useful and harmful microorganisms https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-2/x04828215b460a495:the-world-of-microorganisms-part-i-ii/e/antibiotic-resistance 2026-04-06T02:41:58.374508961Z Antimicrobial Resistance An exercise about gauges proficiency at understanding antibiotic resistance. Joel Prakash Stephen exercise