Samacheer Kalvi solutions for Science - Term 1 [English] Class 6 TN Board chapter 3 - Matter around Us [Latest edition]

______ is not made of matter.

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

Seeds from water-melon can be removed by ______

Lighter impurities like dust when mixed with rice or pulses can be removed by ______.

______ is essential to perform winnowing activity.

Filtration method is effective in separating ______ mixture.

Among the following ______ is not a mixture.

Matter is made up of ______.

In solids, the space between the particles is less than in ______.

Grains can be separated from their stalks by ______.

Chillies are removed from ‘Upma’ by ______ method.

The method employed to separate clay particles from water is ______.

Water obtained from tube wells is usually ______ water.

Which among the following ______ will get attracted to by magnet?

Air is not compressible.

Liquids have no fixed volume but have fixed shape.

Particles in solids are free to move.

When pulses are washed with water before cooking, water is separated from them by filtration.

Strainer is a kind of sieve which is used to separate a liquid from solid.

Grain and husk can be separated by winnowing.

Air is a pure substance.

Butter from curd is separated by sedimentation.

Complete the given analogy.

Solid: Rigidity:: Gas: ______

Complete the given analogy.

Large Inter-particle space: Gas:: ______ :solid.

Complete the given analogy.

Solid: Definite shape:: ______: Shape of the vessel.

Complete the given analogy.

Husk-Grains : Winnowing :: Sawdust-Chalk piece : ______

Complete the given analogy.

Murukku from hot oil: ______:: Coffee powder residue from decoction: ______

Complete the given analogy.

Iron – sulphur mixture : ______:: Mustard seeds from Urad-dhal: Rolling

Match the following.

Match the following.

Define the term matter.

How can husk or fine dust particles be separated from rice before cooking?

Why do we separate mixtures?

Give an example for mixture and justify your answer with reason.

Define - Sedimentation.

Give the main difference between a pure substance and an impure substance.

A rubber ball changes its shape on pressing. Can it be called a solid?

Why do gases not have fixed shape?

What method will you employ to separate cheese (paneer) from milk? Explain.

Look at the picture given below and explain the method of separation illustrated.

How can you separate a large quantity of tiny bits of paper mixed with pulses/dal?

What is meant by food adulteration?

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

Distinguish the properties of solid, liquid, and gas. Draw a suitable diagram.

Using suitable apparatus from your laboratory separate the mixture of chalk powder, mustard oil, water, and coins. Draw a flow chart to show the separation process.

Justify your answer.

Figure 1	Figure 2	Figure 3

The arrangement of particles in three different phases of matter is shown above.

1. Which state is represented by Fig. 1?
2. In which state will the inter-particle attraction be maximum?
3. Which one of them cannot be contained in an open vessel?
4. Which one can take the shape of its container?

Malar’s mother was preparing to cook dinner. She accidentally mixed ground nuts with urad-dhal. Suggest a suitable method to separate the two substances so that Malar can have ground nuts to eat.

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?

Life Skills - Debate

Debate on 'Food adulteration and detection'

Visit a nearby paddy field and rice mill and note down the different separating techniques used there. Is technology replacing some traditional practices?

Write the sequence of steps you would use for making tea. (Use the words: mixture, dissolve, filtrate and residue).

Make a fruit or vegetable salad. Give reasons why you think it is a mixture.

Connect with sports Air is not a pure substance. It helps us in many ways from breathing to playing. Balloon sports are a very popular sport. Hot air is lighter than cool air. So, the balloons filled with hot air rise up. Find out more about hot air balloons.