Tamil Nadu Board of Secondary EducationSSLC (English Medium) (5 to 8) Class 6

The Cow and Birds are nonliving things. - Science

True or False

The Cow and Birds are nonliving things.


  • True

  • False



This statement is False.

  Is there an error in this question or solution?


Give reasons for the following observation:

The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.

A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

Fill in the blank: 

The process in which a solid directly changes into a gas is called ....................

Define interconversion of states of matter.

How a liquid changes into its gaseous state ? Explain ?

Fill in the blank:

The temperature at which a liquid boils is called the................. point of that liquid.

Write whether the following statement is true or false.
Only water can exist in three different states.

Write true or false for statement. Rewrite the false statement correctly.

Solids and liquids can flow.

Give two examples of the following:

Substances which are rigid and not compressible.

 There are large intermolecular gaps in

  1. water
  2. iron ball
  3. common salt
  4. air

All kinds of matter

  1. occupy space and have definite mass
  2. have mass and definite shape
  3. can change their states
  4. have definite volume

What is volume ?

If an object weighs 6 kg on earth. What will be its weight on moon ?

What happens when a solid is heated ?

Why liquids do not have a definite shape ?

Define the following term of Molecule .

Give reason

When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.

When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance spreads in the whole room quickly. Which characteristic of the particles of matter is illustrated by this observation?

What is the general name of :

  1. rigid form of matter ?
  2. fluid forms of matter ?

Fill in the following blank with suitable words :

The smell of perfume gradually spreads across a room due to .....................

State two characteristics of matter demonstrated by diffusion.

Which of the following statement is incorrect?

Which one of the following statements is not true?

  1. the molecules in a solid vibrate about a fixed position
  2. the molecules in a liquid are arranged in a regular pattern
  3. the molecules in a gas exert negligibly small forces on each other, except during collisions
  4. the molecules of a gas occupy all the space available

When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.

  1. What could particles X be ?
  2. Name the gas (or mixture of gases) Y.
  3. What is the phenomenon exhibited by particles X known as ?
  4. What is causing the movement of particles X ?
  5. What conclusion does the existence of this phenomenon give us about the nature of matter ?

Define: diffusion

 Define: interconversion of states of matter.

What are the two conditions for the interconversion of states of matter?

Give reasons for the following:

Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.

Give reasons for the following:

Sugar can be distinguished from talcum powder using water.

Give reasons for the following:

Water on freezing turns into ice.

Give reasons for the following:

A bottle of perfume on opening evolves an odour which can be sensed over a long distance.

Complete the statement given below by selecting the correct word.

The space between atoms in gases is maximum while in ____ is minimum,

Fill in the blank with the correct word Given below.

The space between atoms’ [molecules] of solids is ____

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.

Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free diffusion.

State in which of the three states of matter:

The movement of the particles is neither about their own positions nor in any random direction.

Give a reason why –

Gases have no definite volume and no definite shape.

Give the reason for the following 

Particles of matter move more rapidly on the application of heat.

200 ml of water is poured into a bowl of 400 ml capacity. The volume of water will be ______.

Among the following ______ is not a mixture.

Water obtained from tube wells is usually ______ water.

Air is not compressible.

Match the following.

Property Example
Breaks easily (Brittle) Metal pan
Bends readily Rubber band
Can be stretched easily Cotton wool
Gets compressed easily Mud pot
Gets heated readily Plastic wire

Mr. Raghu returns home on a hot summer day and wants to have buttermilk. Mrs. Raghu has the only curd. What can she do to get buttermilk? Explain

In a glass containing some water, tamarind juice and sugar are added and stirred well. Is this a mixture? Can you tell why? Will this solution be sweet or sour or both sweet and sour?

Which one of the following element name is not derived from planet?

Mention any two characteristics of the particles of matter.

You are provided with a mixture of naphthalene and ammonium chloride by your teacher. Suggest an activity to separate them with well labelled diagram.


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