HARD
6th CBSE
IMPORTANT
Earn 100

Dissolution of a sugar cube in water is a physical change while burning a sugar cube is a chemical change. Why?

Important Questions on Changes Around Us

HARD
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>Put on your thinking cap>Q 5
Give two applications of expansion and contraction of materials.
HARD
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>Put on your thinking cap>Q 5
Cutting a potato is a physical change while cooking it is a chemical change. Explain how.
HARD
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>Put on your thinking cap>Q 6

Look at the given set-up and describe what is being shown.

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HARD
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>Put on your thinking cap>Q 6

Look at the given set-up and describe what is being shown.

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HARD
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>HOTS>Q 1
Seema bought a new skirt for school. When she came home, she realised that it was too long, so she asked her mother to hem it. What kind of change is this?
MEDIUM
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>HOTS>Q 2
Kumar, the potter, used clay to shape a vase on his wheel. Then he baked it in the oven. What kinds of changes are these? Give reasons.
EASY
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>HOTS>Q 3
When dal is cooked, it becomes softer. What kind of a change is this physical or chemical?
MEDIUM
6th CBSE
IMPORTANT
Galaxy A Course in Science Book 6>Chapter 6 - Changes Around Us>HOTS>Q 4
Why are iron objects usually painted?