National Council of Educational Research and Training (2020) Matter in Our Surroundings. [Teaching/Learning Resource]
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As we look at our surroundings, we see a large variety of things with different shapes, sizes and textures. Everything in this universe is made up of material that scientists have named “matter”. The air we breathe, the food we eat, stones, clouds, stars, plants and animals, even a small drop of water or a particle of sand – everything is matter. We can also see as we look around that all the things mentioned above occupy space and have mass. In other words, they have both mass* and volume**. Since early times, human beings have been trying to understand their surroundings. Early Indian philosophers classified matter in the form of five basic elements – the“Panch Tatva”– air, earth, fire, sky and water. According to them everything, living or non-living, was made up of these five basic elements. Ancient Greek philosophers had arrived at a similar classification of matter. Modern-day scientists have evolved two types of classification of matter based on their physical properties and chemical nature. In this chapter, we shall learn about matter based on its physical properties. Chemical aspects of matter will be taken up in subsequent chapters.
Item Type: | Teaching/Learning Resource |
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Program: | Matter in Our Surroundings |
Learning outcomes: | Two types of classification of matter based on their physical properties and chemical nature |
Access: | Open |
Uncontrolled Keywords: | Chemical Properties, Physical Properties, Matter, Secondary students |
Depositing User: | Unnamed user with email prasad@gmail.com |
Date Deposited: | 25 Mar 2025 13:39 |
Last Modified: | 25 Mar 2025 13:39 |
URI: | https://staging.oer4pacific.org/id/eprint/441 |