खान अकेडमी का उद्देश्य सभी के लिए, कहीं भी और कभी भी एक विश्व स्तरीय शिक्षा प्रदान करना है| खान अकेडमी गैर लाभकारी संगठन है और यह खान अकेडमी हिन्दी का आधिकारिक चैनल है| खान अकेडमी हिंदी की वेबसाइट - https://hi.khanacademy.org पर सभी विडियो और अभ्यास सामग्री निःशुल्क उपलब्ध है|
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1:36963 views · 5mo ago · 1:36
In this conversation, teacher Preeti Yadav explains how Khan Academy is supporting classroom learning for students from Classes 6 to 12. The platform’s Hindi-language support and alignment with the UP Board syllabus make learning more meaningful and accessible for students.
1:23607 views · 5mo ago · 1:23
Nandni, a Class 8 student, shares how Khan Academy helped her continue learning beyond the classroom. Sometimes, classroom periods felt too short to fully understand long topics. But through Khan Academy’s videos and practice exercises, she was able to revisit concepts at her own pace and understand them more deeply.
1:34257 views · 5mo ago · 1:34
Mathematics teacher Manoj Kumar explains how Khan Academy is supporting both students and teachers inside the classroom. Students are now able to spend more time practising mathematics through videos, exercises, and assignments, helping them better understand concepts and improve their performance.
1:18379 views · 5mo ago · 1:18
Kinjal, a Class 7 student, shares how Khan Academy changed the way she looked at mathematics. What once felt difficult and stressful slowly became easier through regular practice, revision, hints, and video explanations on the platform.
1:47399 views · 5mo ago · 1:47
A Class 9 student from Ghaziabad shares how Khan Academy helped her become more confident in mathematics and independent in learning. After scoring low in an initial class test, she revisited the topic on the platform, practised step by step, and worked through her mistakes. The result? Full marks in the next test and appreciation from her teacher.
1:4588 views · 5mo ago · 1:45
Suresh Chandra Raiwar, a teacher at Jai Prakash Narayan Sarvodaya Vidyalaya in Jhansi, shares how Khan Academy has supported mathematics learning in his classrooms. By offering additional practice questions, interactive exercises, and Hindi-language explanations, students can strengthen their understanding beyond textbook learning.
1:52135 views · 5mo ago · 1:52
Principal Shailendra Kumar Pathak shares how Khan Academy helped create a more interactive and engaging learning environment for students at his school in Jhansi. As teachers covered topics in class, students practised the same concepts through Khan Academy exercises, receiving instant feedback and additional learning support.
1:1483 views · 5mo ago · 1:14
Anurag once feared mathematics and worried about scoring low marks in class. Answering questions in front of everyone felt stressful and intimidating. But regular practice on Khan Academy changed everything. Through videos, hints, exercises, and classroom support, math became easier to understand and more fun to learn.
1:1354 views · 5mo ago · 1:13
For Aniket, mathematics once felt confusing and intimidating, especially difficult topics like mensuration. He shares how Khan Academy’s interactive videos, exercises, and motivational badges helped him better understand concepts, overcome classroom fear, and enjoy learning math in a whole new way.
1:38108 views · 5mo ago · 1:38
Abhay Yadav, a student from Jhansi, shares how practising on Khan Academy helped him overcome his fear of mathematics, improve his understanding, and score 92 out of 100 in exams. From being afraid to solve questions on the board to confidently tackling difficult math problems, Abhay’s story is a reminder of how the right support and consistent practice can transform learning.
7:39340 views · 5mo ago · 7:39
Discover the classification of forest and ocean resources! Learn about biotic and abiotic resources, ocean energy, and more in this engaging middle school science video on natural resources. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now!
Topics: Classification of Forest Resources · Biotic Forest Resources - Plants · Biotic Forest Resources - Animals · Abiotic Forest Resources · Classification of Ocean Resources · Biotic Ocean Resources
7:011K views · 5mo ago · 7:01
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
9:01768 views · 5mo ago · 9:01
What are conductors and insulators? Learn their meanings, how to test for conduction, explore a simulation, and see real-life examples in this interactive and educational middle school science video! Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now!
Topics: Meaning of conductors and Insulators · Test for conduction · Simulation · Examples
4:29261 views · 5mo ago · 4:29
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
4:54334 views · 5mo ago · 4:54
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
8:42150 views · 5mo ago · 8:42
This video talks about how biotic (living) and abiotic (non-living) parts of nature team up to form ecosystems—from ponds to forests to farms. In this video, you'll learn: 1. The difference between biotic and abiotic components. 2. Define an ecosystem and spot its types: aquatic, terrestrial, and human-made . 3. Understand biotic–abiotic biotic–biotic interactions and abiotic–abiotic interactions with examples 4. Understand how these interactions keep ecosystems balanced
4:58317 views · 5mo ago · 4:58
Ever wondered why cows seem to chew all day long? Or how birds manage to eat without having any teeth? In this video, we’ll explore the fascinating ways cows and birds feed and digest their food. From cows with their four-chambered stomachs and billions of microbial partners to birds with their amazing gizzards that work like built-in grinders—nature has come up with some truly clever tricks! What you’ll learn in this video: 1.
9:0782 views · 5mo ago · 9:07
From coral reefs to forests to your own backyard garden — every ecosystem plays a hidden role in keeping Earth safe and balanced. In this video, explore how ecosystems protect us from floods, provide food, and maintain balance in nature — and how our actions, like deforestation and unsustainable farming, can harm them. You’ll also see how simple, sustainable choices — like crop rotation, drip irrigation, and even a small kitchen garden — can help us rebuild the web of life.
Topics: Human activities that disturb the ecosystem · What can we do to protect our ecosystems? · National parks, wildlife sanctuaries and biosphere reserves · Creating ecosystems of our own · Adopting sustainable farming practices
7:18554 views · 5mo ago · 7:18
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
5:341K views · 5mo ago · 5:34
Ever wondered what makes leaves so unique? In this video, we dive into the fascinating world of leaves, uncovering their structure, types, shapes, and more! Learn about the hidden parts of a leaf like the lamina, petiole, and stipules, and discover how leaves arrange themselves on stems in alternate, opposite, or spiral patterns.
Topics: Parts of Leaves · More about margins · Simple & Compound Leaves · How are leaves arranged on stem? · Leaf Veins · What shapes leaves take?!
3:38245 views · 5mo ago · 3:38
Who breathes faster—you or a fish? In this video, we dive into the fascinating world of fish respiration and uncover how gills work to extract oxygen from water. From the flap-like operculum to the feathery gill filaments and delicate lamellae, you’ll see how fish have evolved a super-efficient system to survive in an oxygen-poor environment. We’ll explore: 1. Why fish breathe more often than humans 2.
5:29155 views · 5mo ago · 5:29
Why does the Moon shine if it’s not a source of light? Why does Earth look like it’s glowing in the famous Pale Blue Dot photo? In this video, we explore the fascinating world of sources of light, and discover the difference between luminous and non-luminous objects. From the blazing Sun and twinkling stars to fireflies, glow sticks, and even deep-sea glowing creatures, you’ll learn about both natural and artificial light sources.
4:43139 views · 6mo ago · 4:43
Discover the fascinating world of soil structure and its vital role in supporting life! In this video, we break down the different shapes of soil particles—columnar, laminar, granular, and block-shaped—and explain how these structures affect plant growth and water drainage. Learn why soil structure is essential for fertility and explore the incredible uses of soil, from plant and water conservation to crafting pottery, bricks, and more.
Topics: What is Soil Structure? · Why soil structure Matter? · What can soil do for us? · Special Types of Soil
4:56394 views · 6mo ago · 4:56
In this video, we explore how giant rocks break down, move around, and eventually form new rocks again! From cracking due to heat and plant roots, to rusting rocks and rushing rivers—discover the slow but powerful forces shaping Earth’s surface.
Topics: Weathering · Types of Physical Weathering · Chemical Weathering · Erosion · Summary
6:28204 views · 6mo ago · 6:28
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
Topics: Passive Heating · Active Heating · CSP · Photovoltaic Cells
6:44126 views · 6mo ago · 6:44
Why do people around the world eat different kinds of food? In this video, we’ll explore how geography and climate shape food habits and determine staple foods like rice, wheat, or maize. Discover how cultural and regional factors affect our diets and eating patterns. We’ll also discuss the importance of a balanced meal and how it supports good health.
Topics: 01:10 : Introduction · 01:57 : Staple Food · 04:24 : How Climate influence growth of different plants · 05:00 : Summary · 05:18 : Other Factors · 05:39 : Fun Fact
5:2177 views · 6mo ago · 5:21
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
4:46103 views · 6mo ago · 4:46
Natural systems are made up of both biotic factors (living organisms and their interactions) and abiotic factors (non-living parts of the environment such as sunlight and temperature). Earth can be divided into four systems, called spheres: the atmosphere (gases surrounding Earth), the biosphere (all living organisms), the geosphere (Earth's interior and surface), and the hydrosphere (all forms of water).
Topics: What does biotic mean? · Earth's natural systems
5:36114 views · 6mo ago · 5:36
"Natural gas is one of the most useful fossil fuels, powering our homes, vehicles, and industries. Found in places like Tripura, Rajasthan, Maharashtra, and the Krishna Godavari Delta, it is easy to transport, burns cleaner than coal and petrol, and is widely used as Compressed Natural Gas (CNG). But here’s the catch—it won’t last forever! Like coal and petroleum, natural gas takes millions of years to form, and we’re using it up fast.
3:21178 views · 6mo ago · 3:21
Nonrenewable energy sources are those that exist in a fixed amount and involve energy transformation that cannot be easily replaced. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now!
Topics: Renewable Energy · Fossil Fuels
6:01134 views · 6mo ago · 6:01
"Ever wondered where petrol actually comes from? It’s not just pumped out of the ground—it has a story that began millions of years ago! In this video, we take you on an exciting journey to uncover how tiny marine organisms from 300 million years ago were transformed by nature into petroleum, which is then refined into the fuels and products we use every day.
5:03448 views · 6mo ago · 5:03
Ever wondered how a simple black rock changed the world? In this video, we dive into the fascinating journey of coal—from its origins in ancient forests 300 million years ago to becoming one of the most important fuels in history. Coal has powered steam engines, fueled industries, and even helped generate electricity in our cities. But its story doesn’t stop there!
5:0598 views · 6mo ago · 5:05
Have you ever thought about what your clothes are made of? Why do we use materials like polyester and nylon instead of just cotton and wool? In this video, we explore fibers and polymers, the science behind synthetic and natural fibers, and how they are made!
Topics: Natural Fibers · Artificial Fibers · Polyester · Polyethelyne · Polymers in nature · Summary
7:0879 views · 6mo ago · 7:08
Plastics are everywhere, but did you know they can stay in the environment for hundreds of years? In this video, we’ll explore plastic pollution, its impact on soil, water, and air, and why burning plastics is harmful. Learn about biodegradable vs. non-biodegradable materials and discover simple ways to reduce plastic waste, like using cloth bags and recycling! Let’s make our planet cleaner and greener.
Topics: Non biodegradable plastic · Plastics affecting groundwater · Can palstics be burned · Examples of biodegradable and degradable materials · How to reduce plastic use?
8:41108 views · 6mo ago · 8:41
In this video, learn how different factors like surface texture, normal force, and surface area affect the force of friction. Through clear visuals and simple explanations, we bust common myths and explain what really matters when it comes to friction!
Topics: Overview of the Three Main Factors · Rough vs Smooth Surface (Effect on Friction) · Interlocking of Surface Irregularities · Second Factor: Normal Force · What is Normal Reaction Force? · Normal Force’s Effect on Friction (Example with Increasing Weight)
8:30882 views · 6mo ago · 8:30
In this video, we explore Rayon, Nylon, Polyester, and Acrylic—amazing synthetic fibers that have changed our lives! Learn how Rayon mimics silk, Nylon is stronger than steel, Polyester never wrinkles, and Acrylic keeps us warm like wool.
Topics: Rayon · Nylon · Polyester · Acrylic · Summary
7:0698 views · 6mo ago · 7:06
Plastics are everywhere! From kitchen utensils to packaging and electrical appliances, plastics play a crucial role in our daily lives. But have you ever wondered why different plastics are used for different purposes?
Topics: Properties of plastics · Uses of plastics
9:49214 views · 6mo ago · 9:49
Let's explore binary & multiple fission with examples. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
8:5367 views · 6mo ago · 8:53
Solid waste is any discarded material that is not a liquid or gas. It is generated in domestic, industrial, business, and agricultural sectors. Solid waste is most often disposed of in landfills. Landfills can contaminate groundwater and release harmful gases. A sanitary municipal landfill consists of a bottom liner (plastic or clay), a storm water collection system, a leachate collection system, a cap, and a methane collection system.
4:46543 views · 6mo ago · 4:46
Organisms reproduce, either sexually or asexually, and transfer their genetic information to their offspring. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere.
8:52241 views · 6mo ago · 8:52
Ever wonder why puddles dry faster in some places? In this video, we explore evaporation: what it is and the factors that affect it—temperature, surface area, humidity, and air movement. We’ll look at real-life examples like clothes drying, puddles vanishing, and lake water thinning away. Learn how these elements shape evaporation in your everyday world.
7:32127 views · 6mo ago · 7:32
Explore convex lenses, including how they refract and transmit light. Learn about a lens's focal point and the thin lens assumption. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now!
7:18242 views · 6mo ago · 7:18
Why is Earth so unique? And here’s a bigger puzzle: if Mercury is closest to the Sun, why is Venus the hottest planet? Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere.
2:49129 views · 6mo ago · 2:49
Concave Lenses Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
8:11121 views · 6mo ago · 8:11
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.
Topics: Density formula · Calculating Density example 1 · Calculating Density example 2 · Finding volume of irregular shapes · Is the key made of gold? · Summary
4:45533 views · 6mo ago · 4:45
An atom is the smallest particle of an element that still retains all the properties of that element. Early philosophers imagined atoms as indivisible units that make up all matter, an idea revived and developed by scientists like John Dalton. Atoms are incredibly small and numerous—a single gold ring contains more atoms than stars in the universe, highlighting their fundamental role in forming the matter we see.
Topics: What are atoms? · How small are atoms? · Summary
5:59529 views · 6mo ago · 5:59
Elements are the fundamental building blocks of all matter, just as letters form the basis of all writing. With only about 100 natural elements, nature constructs everything around us—from tiny microbes to vast oceans and stars. These elements, represented by symbols on the periodic table, combine in countless ways to create the diverse materials that make up the universe.
Topics: Elements in water, rocks, & living things · Periodic table & symbols · Summary
8:16618 views · 6mo ago · 8:16
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 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
Topics: What is a force? · Types of forces · Multiple forces acting on a body · Summary
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