Describe an activity to show that mixing of vinegar and baking powder is a chemical change.

Important Questions on Changes Around Us

EASY

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>PRACTICE TIME>Q 2

How can you say that burning of a substance is an irreversible change?

MEDIUM

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>PRACTICE TIME>Q 3

Encircle the odd one out and give reasons for your choices.
Souring of milk, inflating a balloon, cooking of food, burning of coal.

MEDIUM

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>PRACTICE TIME>Q 3

Encircle the odd one out and give reasons for your choices.
Making of ice cubes, melting of butter, frying of potatoes, heating of water

HARD

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>PRACTICE TIME>Q 4

How would you show that chemical changes are irreversible?

EASY

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>PRACTICE TIME>Q 1

Have you seen things made from clay? Clay is a type of soft earth that can be moulded into different shapes. When clay is baked, it becomes very hard. What changes the clay undergoes in the above process from moulding into different shapes to baking.

EASY

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>PRACTICE TIME>Q 2

Formation of curd from milk is a very common change. In how many ways can you classify the changing of milk into curd?

HARD

6th CBSE

IMPORTANT

Science Booster>Chapter 6 - Changes Around Us>Formative Tasks>Q 1

Find and encircle $8$ terms related to changes in the given word search. Search horizontally or vertically and diagonally.

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