Materials Around Us Class 6 Worksheet Science Chapter 6

Class 6 Science Chapter 6 Worksheet Materials Around Us

Materials Around Us Class 6 Worksheet

A. Tick (✓) the odd one out giving a reason. (Conceptual Learning)

Question 1.
Copper, Aluminium, Silver, Wood, Gold.
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Question 2.
Salt, Sand, Sugar, Glucose, Lactose.
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Question 3.
Glass, Plastic scale, Cardboard, Acrylic sheet, Soap bubble.
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Question 4.
Shower Stall, Smoked glass, Metal sheet, Sunglasses, Waxed paper.
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Question 5.
Tube light, The Moon, The Sun, Burning candles, Firefly.
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B. Multiple Choice Questions

Question 1.
Tick the incorrect statement from the following:
(a) Gold and silver show metallic luster.
(b) Solids have a definite shape.
(c) Liquids have a definite shape and volume.
(d) Gases do not have a definite shape and volume.

Question 2.
Which of the following cannot be compressed?
(a) Cotton
(b) Sponge
(c) Stone
(d) Silk Cloth

Question 3.
Which is an incorrect statement related to the solubility of gases?
(a) Gases always form a completely miscible solution with water.
(b) Gases like nitrogen, helium, hydrogen, and methane are soluble in water.
(c) Carbon dioxide dissolved in water is used by water plants for photosynthesis.
(d) Oxygen dissolves in water which is suitable for supporting aquatic life.

Question 4.
Which of the following is transparent?
(a) Wooden screen
(b) A ceramic plate
(c) A metal sheet
(d) Soap bubble

Question 5.
The metal which is liquid at room temperature:
(a) aluminium
(b) copper
(c) Mercury
(d) nickel

Question 6.
Which option is the most common material combination used for making safety pins?
(a) Glass and wood
(b) Plastic and glass
(c) Leather and wood
(d) Steel and plastic

C. Assertion-Reason (Critical Thinking)

Two statements are given for questions 1 to 5: Assertion (A) and Reason (R). Select the correct answer to these questions from the codes (a), (b), (c), and (d) as given below:
(a) Assertion (A) and Reason (R) both are correct statements and reason is the correct explanation for assertion.
(b) Assertion (A) and Reason (R) both are correct statements and reason is not the correct explanation for assertion.
(c) Assertion (A) is a correct statement but the Reason (R) is a wrong statement.
(d) Assertion (A) is a wrong statement but the Reason (R) is a correct statement.

Question 1.
Assertion (A): Paper, wood, rubber, and jute are lustrous materials.
Reason (R): Lustrous materials have shiny surfaces.

Question 2.
Assertion (A): Sponge is considered to be harder than iron.
Reason (R): Iron cannot be compressed nor can it be scratched while a sponge can be.

Question 3.
Assertion (A): Water is a universal solvent.
Reason (R): Water tends to dissolve many salts and other substances.

Question 4.
Assertion (A): Metals are insulators of electricity.
Reason (R): Metals tend to conduct electricity.

Question 5.
Assertion (A): Gases always form completely miscible solutions with water.
Reason (R): Oxygen gas dissolves in water and is important for the survival of animals and plants that live in water.

D. Very Short Answer Questions

Question 1.
Name three materials which can be made from:
(a) Rubber
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(b) Plastic
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(c) Wood
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(d) Wool
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(e) Steel
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Question 2.
Write down one scientific term for the following:
(a) Materials that do not dissolve in water.
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(b) The materials through which we cannot see objects clearly at all.
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(c) Materials which partially allow light to pass through them.
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(d) Materials that allow light to pass through them.
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(e) Objects that emit light on their own.
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Question 3.
Rearrange the following letters to form meaningful words:
(a) LETAM: ________________________________________________

(b) SSLAG: ________________________________________________

(c) TWARE: ________________________________________________

(d) COHOLAL: ________________________________________________

(e) NESEROKE: ________________________________________________

Question 4.
Give two examples of liquids that are transparent.
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Question 5.
Why does wood float over the surface of water?
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Question 6.
Name two gases that are soluble in water.
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Question 7.
Why do shopkeepers keep all the eatables in a transparent container?
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Question 8.
Who has a mixture where the two substances have completely mixed?
Meenal has red chili powder in the water, Smriti has butter in the water, Sofia has petrol in the water, and Raveena has honey in the water.
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Question 9.
What will happen to a small cotton ball when it is placed in a tumbler of water? Will it:
(a) Float on the surface of the water
(b) Sink to the bottom of the tumbler
Observe the cotton ball for at least 10 minutes and explain your observations.
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Question 10.
How is it possible to make the surfaces of some materials shiny?
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Question 11.
Name two gases that are insoluble in water.
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Question 12.
On a white transparent paper, a drop of liquid falls on it making it translucent. Can you name the liquid that made the paper translucent?
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Question 13.
Select lustrous objects from the following:
Glass bowl, Plastic toy, Steel spoon, Cotton shirt.
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Question 14.
Write down two examples of objects that sink in water.
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E. Short Answer Questions

Question 1.
Match the objects given below with the materials from which they could be made. Remember, an object could be made from more than one material and a given material could be used for making many objects.

Question 2.
Below are the names of some objects and materials:
Water, Basketball, Orange, Sugar, Globe, Apple, Ball, and Earthen pitcher
Group them as:
(a) Round-shaped and other shapes
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(b) Eatables and non-eatables
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Question 3.
When your palm covers the torchlight. The light passes through the palm but not clearly. What do you conclude from the above statement?
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Question 4.
(a) Which of them are insoluble in water?
Sand, Sugar, Chalk, Milk, Salt, Glass.
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(b) Which is the property of silver and gold used in making jewelry?
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(c) Name any two non-lustrous materials.
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(d) Give two examples of hard materials.
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(e) Give two examples of soft materials.
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Question 5.
Using the given materials – turmeric, salt, mustard oil, water, sugar, rice flour, coconut oil. Identify:
(a) Two soluble pairs: Where one substance dissolves in the other.
(b) Two insoluble pairs: Where one substance does not dissolve in the other.
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Question 6.
Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?
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Question 7.
Which is the property you will use to sort out the following:
(a) Books in the library
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(b) Clothes in the wardrobe
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(c) Utensils in the kitchen
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Question 8.
Write down one experiment to show that water is transparent.
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Question 9.
Why did the silver earrings appear dull while the gold earrings appear lustrous, even though both were made of metals?
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Question 10.
Why is iron considered to be harder than sponge?
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F. Higher Order Thinking Skills (HOTS) (Critical Thinking)

Question 1.
Why do some oils float and sink in water? Explain.
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Question 2.
Why is it more difficult to drink hot tea in a steel cup than in a glass cup?
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Question 3.
Why is it not advised to touch electrical switches with wet hands?
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Question 4.
Why are the handles of the pressure cookers made of wood plastic or any other insulating material?
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Question 5.
Why are biscuits in a bakery kept in transparent glass jars?
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Question 6.
Why does ice float in water?
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Question 7.
On a rainy day, Aneesh was standing near the window of his classroom and trying to see the playground through the window glass. As the windows were closed, he was seeing droplets of rain through the window glass. Then he tried to look outside through the paper but he could not see clearly.
(a) Why was he unable to see droplets of rain through the paper?
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(b) Give some other examples of objects through which you can not see clearly.
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(c) What are such substances called through which objects can be seen partially?
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G. Competency/Case-Based Questions (CBQs)

The following questions are case-based. Read the case carefully and answer the questions that follow.

Classifying materials based on their appearance, texture, solubility, hardness, and softness is essential. Appearance and texture can reveal information about a material’s composition and structure. Solubility in water or other solvents indicates a material’s chemical properties and potential reactivity. Hardness and softness determine a material’s durability, strength, and resistance to wear and tear. By categorizing materials in this way, we can identify their suitability for various applications, such as construction, manufacturing, or everyday use. This classification is also for understanding the characteristics of materials which is crucial for innovation, problem-solving, and informed decision-making in various fields, from engineering to art.

Question 1.
What are the advantages of classification?
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Question 2.
Name two substances that are poor conductors of electricity.
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Question 3.
Is pure water a good conductor of electricity?
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Curiosity Class 6 Worksheet

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