EASY
6th CBSE
IMPORTANT
Earn 100

Is making paneer from milk a physical change?

Important Questions on Changes Around Us

MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 7
What is the increase in the volume of a substance called?
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 8
Why is melting of wax a physical change?
EASY
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 1
Why is dissolution of a salt in water a physical change?
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 2
Why are burning of wood and ripening of fruits chemical changes?
HARD
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 3
Why is a mercury thermometer used to measure temperature?
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 4
Why can a tight metallic lid on a glass bottle be opened easily if immersed in hot water for some time?
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 5
Why are gaps left between rails on a railway track?
EASY
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 6 - Changes Around Us>EXERCISES>Q 6
What are reversible and irreversible changes? Give examples.