NCERT Class 6 Science Chapter 6 Changes Around us Extra Questions and Answers
Class 6 Science Chapter 6 Extra Inside Questions and Answers – Changes Around us. Here in this Page Class VI Students can Learn Extra Questions & Answer 6th Chapter Science fully Inside.
We Provided Here Changes Around us Science Chapter 6 Long Answer Type Question, MCQ Questions & Answer, Short Answer Type Questions (2 or 3 marks), and Very Short answer Type Question (1 marks).
Class 6 Science Chapter 6 Extra Question with Answer – Changes Around us
Science Chapter 6 Changes Around us Class 6 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers.
MCQ Type
(1) When an object is cooled, its size
(a) increases
(b) decreases
(c) remains same
(d) none of the above
Ans:- (b) decreases
(2) Which of the following is a reversible change ?
(a) Evaporation
(b) Ripening of fruits
(c) Bud to flower
(d) Milk to curd
Ans:- (a) Evaporation
(3) Which of the following changes will show expansion?
(a) Burning of paper
(b) Heating of sand
(c) Heating of iron
(d) Heating of wood
Ans:- (c) Heating of iron
(4) Melting of ice a
(a) Reversible change
(b) Irreversible change
(c) Chemical change
(d) None of the above
Ans:- (a) Reversible change
Very Short Answer Type Extra Questions
(1) What kind of change takes place when milk changes too curd?
Solution:
Irreversible change takes place.
(2) What kind of change is melting of wax ?
Solution:
It’s a reversible change.
(3) Is burning of a candle a reversible or irreversible change?
Solution:
Burning of candle is an irreversible change.
(4) Is inflating a balloon a reversible change?
Solution:
Inflating a balloon is a reversible.
(5) A mirror falls down and breaks. Can this change be reversed?
Solution:
No, this change cannot be reversed.
Short Answer Type Extra Questions
(1) What is contraction?
Solution:
When an object is cooled, its size contracts or becomes smaller. This is called contraction.
(2) What is expansion?
Solution:
When an object is heated. It expands or increases in size, this process is called expansion
(3) Is burning of incense stick a reversible change?
Solution:
Burning of incense stick irreversible change as on burning new substance esh is formed along with smoke.
Long answer Type Extra Questions
Source: Diksha
More Extra Questions:
1) Classify the following as reversible and irreversible change:
a) Knitting a sweater.(Reversible)
b) Cooking of food.(Irreversible)
c) Souring of milk.(Irreversible)
d) Boiling of an egg.(Irreversible)
e) Melting of ice.(Reversible)
2) Give one use of the expansion of an object on heating.
Ans: The iron blade of a spade is fixed to a wooden handle by the process of expansion on heating.
3) The water changes into its vapor. What is the cause of this change?
Ans: The cause of this change is heat.
4) Multiple choice questions:
a) Which one of the following is a reversible change?
a) Water changing into ice b) Paper burning into ash
Ans: a) Water changing into ice
b) Which one of the following is an irreversible change?
a) Ripening of a mango b) Dissolving sugar in water
Ans: a) Ripening of a mango
c) Growth of nails is _____ change.
a) Irreversible b) Reversible
Ans: b) Reversible
d) Ageing of human and animals is _____ change.
a) Reversible b) Irreversible
Ans: b) Irreversible
5) Mark your answer as per the codes provide below:
a) A: The burning of paper is an irreversible change.
R: We cannot combine the ash and smoke to form the original piece of paper.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
Ans: I. Both A and R are true and R is the correct explanation of A.
b) A: Dissolving salt in water is anirreversible change.
R:) If we keep the beaker containing salt solution over a burner and evaporate it then water will eliminate and salt will left behind.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
Ans: IV. A is false but R is true.
Please make it difficult also these are good question
First one answer is wrong.
When an object is cool down its sizes decreases. Plz make it right.
First question is wrong of mcqs . Pls make it right for other students