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

Water obtained from tube wells is usually ______ water. - Science

Fill in the Blanks

Water obtained from tube wells is usually ______ water.



Water obtained from tube wells is usually Impure water.

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Chapter 3: Matter around Us - Evaluation [Page 51]


Tamil Nadu Board Samacheer Kalvi Class 6th Science Term 1 Answers Guide
Chapter 3 Matter around Us
Evaluation | Q II. 6. | Page 51


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 change of water vapour into water is called ......................

Water cycle is an example of inter conversion of states of water. Explain.

Define the following term.


 Name the three states of matter and define them.

Give reason:
 Why do liquids and gases flow but solids do not ?

Give reason:
A red ink drop added to small amount of water in a glass turns water red in some time.

 Fill in the blank:

The physical state of a substance, which has a fixed volume but no fixed shape is .........

Write whether the following statement is true or false.
A gas has no free surface.

Name the phenomenon which cause the following change:

Conversion of water into steam.

Give reason :
When a spoon is dipped in a glass containing some water the level of water rises but when a spoon of sugar is added to it and stired, the water level does not rise?

Fill in the blank :

Air is a matter because it has ________ and _______ and it can be _________

What is volume ?

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.

Give reason

A red ink drop added to small amount of water in a glass turns water red in some time.

When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?

Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?

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.

Explain why, we can easily move our hand in air but to do the same through a plank of wood, we need a karate expert.

What is meant by 'diffusion'? Give one example of diffusion in gases.

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 ____

State in which of the three states of matter:

The space between the particles is minimum.

Give a reason why –

Gases have no definite volume and no definite shape.

Give a reason why solids and liquids co-exist at their melting points.

Explain the term ‘interconversion of matter’ with ice as a starting material.

Fill in the blank:

Particles in a gas possess ___________ kinetic energy.

Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in the following case.

During sublimation, the inter-particle attraction is _______________.

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.

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?

The Cow and Birds are nonliving things.

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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