Matter In Our Surroundings | Introduction | Chapter 1 | SEED 2024-2025

This is an Introduction video for Class 9th Science Chapter 1 Matter in our surroundings from NCERT book for students for Batch SEED 2024-2025.
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0:51 What is matter?
3:53 Physical nature of matter
6:44 Characteristics of particles
13:32 Diffusion
22:36 States of Matter
32:16 Can matter change its shape?
33:09 Melting or fusion
35:04 Vaporization
37:12 Solidification or Freezing
39:05 Sublimation
41:30 Condensation
44:44 Deposition
47:58 Effect of change of temperature
53:26 Latent Heat
59:47 Types of latent heat
1:01:17 Effect of change of pressure
1:03:48 Evaporation
1:15:14 Evaporation vs Boiling
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[@Class9MathsScience]

47:26 Gas to liquid*

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Yes ma'am That's why I confused in in this topic because I think that gas to liquid is condensation but write their condensation mean liquid to gas Thankyou

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Mam please make an experiment video on latent heat plss mam it's my request pls mam

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Pls mam make an experiment on this 56:36

[@vinodkaushal1105]

1:06:52 agar pani ko bottle me rakhe aur uski cap band kar de to Pani ki evaporization to nhi hota he

[@user-nz2sp9fc4r]

0:51 What is matter? 3:53 Physical nature of matter 6:44 Characteristics of particles 13:32 Diffusion 22:36 States of Matter 32:16 Can matter change its shape? 33:09 Melting or fusion 35:04 Vaporization 37:12 Solidification or Freezing 39:05 Sublimation 41:30 Condensation 44:44 Deposition 47:58 Effect of change of temperature 53:26 Latent Heat 59:47 Types of latent heat 1:01:17 Effect of change of pressure 1:03:48 Evaporation 1:15:14 Evaporation vs Boiling

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@@hiitsmetanvi1891 FYI i am not "he" i am "she" and i did this because many people don't check discription only a few of them check but may non intrested in study people like you check comments so for them i did this also this is not any copy paste thing i wrote by myself by seeing from description also you do not have any right to call anyone a backbencher it is a kind of cyber crime what if it hurts anyone and they report about you...

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47:25 mam yha or apne glti se gas to liquid ki jagah liquid to gas likh diya ... But your way of teaching is very clear abd understandable.... ❤ Thank you ❤❤

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Hello mam I hope you are doing well actually I am not very active in KZbin I was searching something and suddenly KZbin suggested me your video of class 10th and then I just thought to express my gratitude to you ........currently I am in class 12th biology student I know that may sound weird because you are a maths teacher and here I am a biology student but in class 10 I was from maths standard group you know what Ma'am I just want to express my gratitude and my thankfulness to you because your videos even from e Vidyarthi before this channel in the 2018-19 and even during covid you had been a great support for me personally and for many students too..... but I never got a chance to say thank you to you you know what I scored 93 out of 100 in CBSE board examination and I cannot say that it was because of my efforts only but teachers like you made the subject easy so thank you ......thank you so much mam for everything I have not opted maths all because I was not interested in the subject also I have love for biology more than maths I I opted for math standard because I knew my potential and I think it was worth it because hard work is something which is always worthy so thank you thank you thank you so much mam for everything for your every helpful video you are a life saver thankyou so much ❤❤❤.... From Trisha 😊😊😊

[@sanitasuthar5097]

47:30 mam ek mistake h liquid to gas nhi hoga Gas to liquid hoga ❤

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[@ayushraghav-wj3fb]

I invite you to share your thoughts by leaving a comment. Your opinion is valuable to us and will help us improve our services. Thank you in advance for taking the time to provide your feedback.but this chapter is very easy

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47:23

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Chapter about matter ✖️ chapter about water ✔️

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34:06 ice cream 🍦🍦😛😛

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Matter in our surroundings is the first chapter that covers the physical nature of matter, its states, and how matter can change its state with changes in temperature and pressure. Key moments: 05:02 Particles are the building blocks of matter, whether in solid, liquid, or gas states, each made up of tiny particles, defining the physical nature of matter. -Understanding the physical nature of matter through particles in solid, liquid, and gas states, each with unique characteristics. -Explaining how particles form the basis of all matter, from the tiniest particles in liquids to the arrangement in solid structures. -Introducing experiments to explore different aspects of matter, creating a playlist for a deeper understanding of various topics. 13:32 Diffusion is the movement of particles from an area of high concentration to an area of low concentration, illustrated by the spreading of ink in water. -Diffusion is a fundamental process where particles mix from high to low concentration areas, as seen in ink spreading in water. -Understanding diffusion helps comprehend how particles interact and spread, crucial in various scientific and everyday scenarios. -High concentration areas have particles closely packed, leading to rapid diffusion when particles move and mix with each other. 16:08 Particles in high concentration move towards areas of low concentration, a phenomenon known as diffusion, which varies in solids, liquids, and gases due to the distance between particles. -Diffusion occurs when particles move from high to low concentration areas, impacting solids, liquids, and gases differently based on particle distance. -The concept of diffusion is exemplified through the movement of particles in solids, liquids, and gases, showcasing varying levels of attraction between particles. -Understanding the states of matter - solid, liquid, and gas - involves analyzing the characteristics and spacing of particles within each state. 30:59 Gases have particles that are far apart, weak forces of attraction between them, and can move freely in all directions, unlike solids. Liquids have intermediate intermolecular forces of attraction between particles, allowing them to move freely but with little space between them. -Comparison of intermolecular forces in gases and liquids. Gases have weak forces and particles can move freely, while liquids have intermediate forces allowing some movement with little space between particles. -Understanding the properties of gases and liquids. Gases have particles far apart with weak forces, while liquids have particles with some space between them and can move freely but with limited movement. 39:08 Sublimation is the process where a substance changes directly from a solid to a gas without passing through the liquid state, exemplified by dry ice. Understanding temperature changes is crucial in processes like freezing and solidification. -Freezing and solidification involve changing a substance from a liquid to a solid state, or vice versa, with examples like ice formation and dry ice sublimation. -Temperature manipulation plays a key role in altering states of matter, such as increasing temperature to melt a solid into a liquid or decreasing temperature to freeze a liquid into a solid. -Understanding sublimation is essential as it showcases the direct transition of a substance from a solid to a gas state, bypassing the liquid phase, as seen in processes like dry ice sublimation. 40:17 Understanding the process of condensation, where substances change states from gas to liquid or solid, is crucial in various everyday scenarios. From the formation of water droplets to the effects of temperature changes, condensation plays a significant role in our environment. -Exploring the formation of water droplets in different states like gas, liquid, and solid, and how temperature changes affect this process. -Discussing the concept of deposition, where substances transition directly from gas to solid, and its implications in real-life scenarios. -Highlighting the impact of temperature changes on substances, leading to effects like melting, fusion, and the importance of understanding these transformations. 53:17 Understanding the concept of latent heat through an experiment involving melting ice and observing temperature changes. The latent heat remains constant while providing heat until the ice melts completely. -Explanation of temperature conversion between Celsius and Kelvin, highlighting the importance of understanding the relationship between the two units. -Experiment demonstrating the concept of latent heat by heating ice in a pan and observing temperature changes as the ice melts into liquid form. -Observing the process of latent heat during the phase change from solid to liquid, and then to gas, showcasing the hidden heat energy involved. 56:27 Latent heat of fusion is the energy needed to change the state of a substance without a change in temperature. Understanding the concept of latent heat helps in explaining the process of vaporization. -Explanation of latent heat of fusion and its significance in state change. It helps in understanding the process of vaporization. -Effect of pressure change on state change. Pressure can convert a gas to a liquid or solid, impacting the kinetic energy of molecules. -Concept of vaporization and its role in changing states of matter. Vaporization involves converting a liquid into a gas, such as water turning into water vapor. 1:04:32 Understanding the process of evaporation involves factors like surface area, temperature, and humidity affecting the rate of evaporation. Different examples like water evaporation, hair drying, and perfume evaporation illustrate these concepts. -Factors like surface area, temperature, and humidity influence the rate of evaporation. Water boiling, hair drying, and temperature changes affect evaporation processes. -Examples such as water evaporation, hair drying, and perfume evaporation demonstrate how different factors impact the evaporation process. Understanding these factors helps predict the rate of evaporation in various scenarios. -Exploring the impact of wind speed on evaporation reveals how environmental conditions affect the evaporation rate. Examples like hair drying and cooling processes showcase the relationship between wind speed and evaporation. 1:12:36 The video discusses the process of heat energy conversion during operations, explaining the difference between natural evaporation and boiling, and how different fabrics affect cooling effects in summer. -Explanation of heat energy conversion during operations and the use of heat energy in gas conversion. -Comparison between natural evaporation and boiling processes, and the impact of different fabrics on cooling effects in summer. -Understanding the concept of condensation and its occurrence in different scenarios, such as in the presence of cold water or cold drinks. 1:20:40 The video explains the process of gas converting into liquid, leading to condensation and state changes, demonstrated through experiments with water and glass walls. -The conversion of gas to liquid and the formation of condensation explained through state changes and water droplets on glass walls. -Understanding the concept of condensation and state changes, with a focus on the experiments conducted to demonstrate the process visually.

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12:51

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47:46 what about solidification

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