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
Fill in the Blanks :
Complete the following with a suitable word/ words:
(i) Earthen pitcher is an example of _________ object.
Answer:
round
(ii) Grouping of things is done for _________ .
Answer:
convenience
(iii) An object can be made of different _________.
Answer:
materials
(iv) The objects through which we can see are known as _________.
Answer:
transparent
(v) Different objects can be grouped on the basis of their _________ and _________.
Answer:
similarities, differences
(vi) Materials that have lustre are usually _________.
Answer:
metals
(vii) The materials through which objects can be seen but not clearly are called _________.
Answer:
translucent
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 |
True/False :
Write ‘true’ (T) or ‘false’ (F) against the following statements:
(i) We can see clearly through translucent things.
Answer:
False
(ii) Glass is transparent.
Answer:
True
(iii) Mirror is transparent.
Answer:
False
(iv) A wooden box is opaque.
Answer:
True
(v) Sponge is hard.
Answer:
False
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.
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.