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Activity 1.1: Nature of Matter

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Questions and Answers

What is the fundamental characteristic of matter that is observed in everything around us?

It has neither mass nor volume

It has only volume

It has both mass and volume (correct)

It has only mass

What did ancient Indian philosophers believe that everything was made up of?

The five basic elements - Panch Tatva (correct)

Four basic elements

Six basic elements

Ten basic elements

What is the classification of matter based on, according to modern day scientists?

Neither physical properties nor chemical nature

Only physical properties

Only chemical nature

Both physical properties and chemical nature (correct)

What was the difference in the two schools of thought regarding the nature of matter?

One believed matter was continuous, the other believed it was made up of particles Signup and view all the answers

What will be discussed in subsequent chapters?

Chemical nature of matter Signup and view all the answers

What is the term used to describe the amount of space occupied by an object?

Volume Signup and view all the answers

What is the primary reason why a sponge can be compressed?

Because it has minute holes with trapped air Signup and view all the answers

Which of the following is NOT a characteristic of the particles of a solid?

Random motion Signup and view all the answers

What is the primary reason why we can smell hot sizzling food from a distance, but not cold food?

The particles of hot food are more energetic Signup and view all the answers

What is the common characteristic of a chair, almonds, and lemon water?

They are all matter Signup and view all the answers

Which property of matter does a diver's ability to cut through water in a swimming pool demonstrate?

Density Signup and view all the answers

What is the shape of a sugar or salt crystal?

Fixed Signup and view all the answers

What happens to the salt/sugar particles when it dissolves in water?

It spreads throughout the water Signup and view all the answers

What is the SI unit of mass?

Kilogram (kg) Signup and view all the answers

What is the purpose of Activity 1.2?

To demonstrate that particles of matter are extremely small Signup and view all the answers

What is observed when potassium permanganate crystals are dissolved in water?

The solution remains coloured even after dilution Signup and view all the answers

What is the purpose of Activity 1.3?

To demonstrate that particles of matter are continuously moving Signup and view all the answers

What is the relationship between 1L and 1 dm3 in terms of volume?

1L is equal to 1 dm3 Signup and view all the answers