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Characteristics and Properties of Matter - Matter in our Surrounding, Class 9, Science Video Lecture

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FAQs on Characteristics and Properties of Matter - Matter in our Surrounding, Class 9, Science Video Lecture

1. What are the characteristics of matter?
Ans. Matter has several characteristics that define it. Some of the key characteristics of matter include mass, volume, density, and physical properties such as color, shape, and texture. It also has the ability to occupy space and undergo physical and chemical changes.
2. What are the properties of matter?
Ans. Matter has various properties that help us identify and classify it. Some common properties of matter include physical properties such as color, odor, taste, melting point, boiling point, and density. Chemical properties of matter include reactivity, flammability, and the ability to undergo chemical reactions.
3. How is matter classified based on its properties?
Ans. Matter can be classified into different categories based on its properties. One common classification is based on its physical state, which includes solid, liquid, and gas. Another classification is based on its chemical composition, which includes elements, compounds, and mixtures. These classifications help us understand and study different types of matter.
4. What are the physical properties of matter?
Ans. Physical properties of matter are characteristics that can be observed or measured without changing the substance's chemical composition. Examples of physical properties include color, shape, size, texture, density, melting point, boiling point, and conductivity. These properties can help us identify and differentiate different types of matter.
5. How do physical and chemical changes occur in matter?
Ans. Physical changes in matter occur when its physical properties change without altering its chemical composition. For example, melting ice to form water is a physical change. On the other hand, chemical changes occur when matter undergoes a chemical reaction, resulting in the formation of new substances with different chemical properties. Burning wood to produce ash and smoke is an example of a chemical change.
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