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Chapter 1 Matter in Our Surroundings Overview

12 Questions

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Chapter 1 Matter in Our Surroundings Overview

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Questions and Answers

According to early Indian philosophers, what were the five basic elements of matter?

Earth, sky, stars, stones, and plants

Air, earth, fire, sky, and water (correct)

Wood, sand, air, water, and fire

Clouds, animals, food, air, and stones

What is the term used by scientists to describe everything in the universe?

Particle

Element

Substance

Matter (correct)

What do all things in the surroundings mentioned have according to the text?

Shape and color

Temperature and texture

Mass and volume (correct)

Density and weight

Which belief prevailed for a long time regarding the nature of matter?

Matter is continuous like a block of wood Signup and view all the answers

What did ancient Greek philosophers classify matter based on?

Both physical and chemical properties Signup and view all the answers

In what types of classification will chemical aspects of matter be taken up according to the text?

Based on physical properties Signup and view all the answers

What is the purpose of the activity described in the text?

To decide whether matter is continuous or particulate Signup and view all the answers

What happens to the particles of salt when it is dissolved in water?

They spread throughout the water Signup and view all the answers

Why do we need to use the idea that matter is made up of particles to answer questions about the activity?

To explain how substances mix at a molecular level Signup and view all the answers

What happens to the particles of salt when they dissolve in water according to Figure 1.1?

They spread evenly throughout the water Signup and view all the answers

How do the particles of salt interact with the particles of water when dissolved?

They mix together evenly Signup and view all the answers

What unit is commonly used to measure volume according to the text?

Litre (L) Signup and view all the answers