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Chapter 1: Matter in Our Surroundings

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Questions and Answers

What is the SI unit of mass?

Pound

Kilogram (correct)

Ounce

Gram

What happens to the level of water in the beaker when salt is dissolved?

The level fluctuates

The level decreases

The level remains the same (correct)

The level increases

When salt is dissolved in water, where do the particles of salt go?

They rise to the surface

They disappear

Into the spaces between particles of water (correct)

They remain at the bottom

What are the particles of matter made up of, according to the text?

Individual units Signup and view all the answers

What is the common unit of measuring volume?

Litre Signup and view all the answers

What happens to the particles of potassium permanganate when dissolved in water?

They get into the spaces between water particles Signup and view all the answers

What is matter?

The air we breathe, food we eat, stones, clouds, stars, plants, and animals Signup and view all the answers

What types of classification of matter have modern day scientists evolved?

Based on physical properties and chemical nature Signup and view all the answers

How did early Indian philosophers classify matter?

Into air, earth, fire, sky, and water Signup and view all the answers

Which ancient philosophers had a similar classification of matter to the early Indian philosophers?

Ancient Greek philosophers Signup and view all the answers

What was one of the early schools of thought regarding the nature of matter?

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

In which upcoming chapters will the chemical aspects of matter be discussed?

Subsequent chapters Signup and view all the answers