MCQ on Materials Around Us Body Class 6
Class 6 Science Chapter 6 MCQ Materials Around Us
Choose the correct option:
Question 1.
Tables are made up of
(a) plastic
(b) wood
(c) leather
(d) both (a) and (b).
Answer:
(d) both (a) and (b).
Question 2.
Which one of the following is soft?
(a) Iron
(b) Wood
(c) Cotton
(d) Stone
Answer:
(c) Cotton
Question 3.
Which one of the following is hard?
(a) Cotton
(b) Sponge
(c) Iron
(d) None of them
Answer:
(c) Iron
Question 4.
Choose the substance soluble in water.
(a) Sugar
(b) Mud
(c) Chalk
(d) Sand
Answer:
(a) Sugar
Question 5.
Choose the transparent substance.
(a) Wood
(b) Stone
(c) Mirror
(d) Glass
Answer:
(d) Glass
Question 6.
Which one of the following is hard ?
(a) Cotton
(b) Sponge
(c) Iron
(d) Foam
Answer:
(c) Iron
Question 7.
Which one of the following is soft ?
(a) Iron
(b) Wood
(c) Cotton
(d) Stone
Answer:
(c) Cotton
Question 8.
Which one of the following object is translucent?
(a) card board
(b) glass
(c) groundnut oil
(d) cloud
Answer:
(d) cloud
Question 9.
Which of the following materials is not used for making utensils ?
(a) stainless steel
(b) lead
(c) copper
(d) silver
Answer:
(b) lead
Question 10.
Which one of the following liquids is immisicible with water?
(a) kerosene
(b) lemon juice
(c) vinegar
(d) glycerine
Answer:
(d) glycerine
Question 11.
Which one of the following does not dissolve in water ?
(a) washing soda
(b) common salt
(c) chalk powder
(d) sugar
Answer:
(c) chalk powder
Question 12.
Which one of the following is lighter than water?
(a) Ice
(b) Bones
(c) Stone
(d) Glass
Answer:
(a) Ice
Question 13.
Which one of the following is a transparent material ?
(a) Tissue paper
(b) Butter paper
(c) Oiled paper
(d) Air
Answer:
(d) Air
Question 14.
The object that does not give out light on its own is
(a) light bulb
(b) shiningmirror
(c) star
(d) lighted match stick
Answer:
(b) shiningmirror
Question 15.
Which of the following are translucent material ?
(a) ground glass and clouds
(b) ground glass and aluminium sheet
(c) air and clouds
(d) ground glass and air.
Answer:
(a) ground glass and clouds
Assertion-Reason type Questions :
Directions (Q. No. 1 to 5): The question below consists of an Assertion (A) and a Reason (R). Use the following key to choose the appropriate answer.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Question 1.
Assertion (A): The matter from which something is or can be made is called material. Reason (R): Materials are grouped together on the basis of similarities and dissimilarities in their properties.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 2.
Assertion (A): Substances which do not mix with water are called insoluble.
Reason (R): They do not disappear in water even after stirring for a long time.
Answer:
(a) Both A and R are true and R is the correct explanation of A.
Question 3.
Assertion (A): Materials that are shiny are called lustrous materials.
Reason (R): Metals are usually dull.
Answer:
(c) A is true but R is false.
Question 4.
Assertion (A): Metal is a hard, shiny, solid material.
Reason (R): Copper and aluminium are metals.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 5.
Assertion (A): Materials can be grouped on the basis of whether they are transparent, translucent or opaque.
Reason (R): A plastic bottle is transparent while ceramic is opaque material.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true and (R) is not the correct explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.
Question 1.
Assertion (A) : We classify the objects into groups.
Reason: The classification of objects into groups helps in understanding them.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 2.
Assertion (A) : Water plays an important role in the functioning of our body.
Reason : Water can dissolve a large number of materials.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 3.
Assertion (A) : Anything that occupies space and has mass is called matter.
Reason : The space occupied by matter is its volume.
Answer:
(b) Both (A) and (R) are true and (R) is not the correct explanation of (A).
Question 4.
Assertion (A) : Materials that allow light to pass through partially are called translucent.
Reason: Air and certain types of plastics are translucent.
Answer:
(c) (A) is true but (R) is false.
Question 5.
Assertion (A) : Mustard oil is soluble in water.
Reason : Kerosene can mix with petrol to form a single layer.
Answer:
(d) (A) is false but (R) is true.
Fill in the Blanks :
Complete the following with a suitable word/ words:
1. Earthen pitcher is an example of _________ object.
Answer:
round
2. Grouping of things is done for _________ .
Answer:
convenience
3. An object can be made of different _________.
Answer:
materials
4. The objects through which we can see are known as _________.
Answer:
transparent
5. Different objects can be grouped on the basis of their _________ and _________.
Answer:
similarities, differences
6. Materials that have lustre are usually _________.
Answer:
metals
7. The materials through which objects can be seen but not clearly are called _________.
Answer:
translucent
8. A piece of glass is transaparent but a piece of card board is _______.
Answer:
opaque
9. Different objects can be grouped on the basis of their _______ and _______.
Answer:
similarities, differences
10. The materials through which objects can be seen but not clearly are called _______.
Answer:
translucent
11. Metals that have lustre are usually _______.
Answer:
Metals
12. Matter in its liquid state has a definite _______ and _______.
Answer:
mass, volume
13. Hard materials such as glass _______ easily whereas metals do not _______.
Answer:
break
14. Mustard oil and water are _______ liquids.
Answer:
immiscible
15. We cannot see through an _______ material.
Answer:
opaque
16. Stone is _______ while chalk is _______ .
Answer:
hard, soft
17. The electric wires and cables are made from _______ .
Answer:
aluminium
True/False :
Write ‘true’ (T) or ‘false’ (F) against the following statements:
1. We can see clearly through translucent things.
Answer:
False
2. Glass is transparent.
Answer:
True
3. Mirror is transparent.
Answer:
False
4. A wooden box is opaque.
Answer:
True
5. Sponge is hard.
Answer:
False
6. Grouping is done on the basis of similarities in things.
Answer:
True
7. Chair, table, book-shelf, stool are grouped together because all these are made of wood.
Answer:
True
8. We can see clearly through translucent things.
Answer:
False
9. We may use different materials for making different parts of an object.
Answer:
False
10.Materials which can be compressed or scratched easily are hard, while other materials which are difficult to compress or scratch are soft.
Answer:
True
11. The space occupied by matter is its volume.
Answer:
True
12. Oil is miscible with water.
Answer:
False
13. Mirror is transparent.
Answer:
False
14. Sponge is hard.
Answer:
False
15. Some materials dissolve rapidly in water and some do not dissolved.
Answer:
True
Match the Following :
| Column A | Column B |
| (a) Completely disappears in water | (i) Translucent |
| (b) Air | (ii) Opaque |
| (c) Wood | (iii) Transparent |
| (d) Oiled paper | (iv) Soluble |
Answer:
| Column A | Column B |
| (a) Completely disappears in water | (iv) Soluble |
| (b) Air | (iii) Transparent |
| (c) Wood | (ii) Opaque |
| (d) Oiled paper | (i) Translucent |
Quiz Time :
Question 1.
Name two materials that can be used for making more than one type of an object.
Answer:
Wood, Plastics.
Question 2.
Why do we choose a particular material for preparing an object?
Answer:
Properties of the material and the purpose for which the object is to be used must be compatible.
Question 3.
Which can be compressed easily-a sponge or a lemon?
Answer:
Sponge.
Question 4.
A boy added 10 g common salt to 250 mL of water. The salt disappeared. Whether the salt is still present in the water or evaporated?
Answer:
Salt has dissolved in water and is still present in water. We can find it out by tasting the water.
Question 5.
You cannot see objects through a piece of plywood. What would you call the plywood?
Answer:
Opaque.
Question 6.
When we pour a few drops of mustard oil to water, the oil floats on the surface of water. Why?
Answer:
Mustard oil is lighter than water and is also insoluble in water. So, it floats.
Question 7.
Shyam was able to see cricket match that his friends were playing in the park through a window, although the window was closed. How?
Answer:
Shyam was able to see the cricket match through glass windowpanes which were transparent.
Question 8.
Give example of two translucent materials other than discussed in your book.
Answer:
(i) Frosted glass,
(ii) Butter paper/Fog.
Self-Assessment :
Question 1.
Which one of the following is soft?
(a) Iron
(b) Wood
(c) Cotton
(d) Stone
Question 2.
Which one of the following is hard?
(a) Cotton
(b) Sponge
(c) Iron
(d) None of them
Question 3.
Choose the substance soluble in water:
(a) Sugar
(b) Mud
(c) Chalk
Question 4.
Assertion (A): Substances which do not mix with water are called insoluble.
(d) Sand Reason (R): They do not disappear in water even after stirring for a long time.
(a) Both A and R are true and R is the correct explenation of A .
(b) Both A and R are true but R is not the correct explanation of A .
(c) A is true but R is false.
(d) A is false but R is true.
Question 5.
Match the items in Column A with those in Column B
| Column A | Column B |
| (i) Completely disappears in water | (a) Translucent |
| (ii) Air | (b) Opaque |
| (iii) wood | (c) Transparent |
| (iv) oily aper | (d) Soluble |
(A) (i)-(d), (ii)-(c), (iii )-(b),(i v)-(a)
(B) (i)-(d), (ii)-(a), (iii)-(b), (iv)-(c)
(C) (i)-(a),(i i)-(d),(i i i)-(b),(i v)-(c)
(D) (i)-(a),(i i)-(b),(i i i)-(d),(i v)-(c)
Question 6.
How many types of materials are there on the basis of their transparency?
Question 7.
Name two objects which can be made from wood.
Question 8.
Write the names of two round-shaped objects.
Question 9.
Name two, óbjects which can be made from metal.
Question 10.
Name twó objects which are made from plastics.
Question 11.
Why is a tumbler not made with clothes?
Question 12.
What is the basis for sorting materials?
Question 13.
What are the similarities between iron, copper and aluminium?
Question 14.
Kerosene, coconut oil, mustard oil do not dissolve in water, even on shaking. They separate after sometime forming two different layers. Explain why.
Question 15.
Name two substances-dissolve in water and two substances that do not dissolve in water.
Question 16.
Can we fill 800 mL of water in a bottle labelled as capacity of 700 mL ? Justify your answer.
Question 17.
Write true (T) or false (F) against following statements.
(i) Glass is a transparent material. [ ]
(ii) Sugar does not dissolve in water. [ ]
Question 18.
Name three objects which can be made from steel or iron. Give uses of each of them.
Question 19.
Which among the following materials would you identify as soft material and why? Ice, rubber band, leaf, eraser, pencil, pearl, a piece of wooden board, cooked rice and fresh chapatti
Question 20.
Identify the following statements are correct or not. If not, write the correct statements. Give reasons also.
(a) Stone is transparent while water is opaque.
(b) Different types of materials have same property.
Question 21.
Show with the help’ of an activity that chalk powder and sand are not soluble in water while common salt and honey are soluble in water.
Question 22.
(a) Write an experiment to show that our palm is translucent.
(b) Why do we need to group materials?
Question 23.
Explain with the help of an activity to show that water is transparent.