B. Classify the following as physical or
chemical changes.
1. crushing a piece of chalk
2. dissolving sugar in water
3. switching on a bulb
4. cooking idli from batter
5. grinding corn into corn flour
6. knotting a rope
7. souring of milk
8. stitching a shirt
9. painting a wall
10. burning a piece of
paper
11. germination of a seed
12. growing a tomato plant
13. baking bread
14. chopping up wood
15. weaving a basket
Answers
Refer P as physical and C as chemical..
1. crushing a piece of chalk :- C
2. dissolving sugar in water :- C
3. switching on a bulb :- P
4. cooking idli from batter :-C
5. grinding corn into corn flour :- P
6. knotting a rope :- C
7. souring of milk :-P
8. stitching a shirt :- P
9. painting a wall :-C
10. burning a piece of paper:- P
11. germination of a seed:- C
12. growing a tomato plant :- P
13. baking bread :- P
14. chopping up wood :- P
15. weaving a basket :-C
⭐ Please Mark branilest Answer ⭐
Answer:
1: chemical change
2: chemical change
3: physical change
4: chemical change
5: physical change
6: chemical change
7: physical change
8: physical change
9: chemical change
10: physical change
11: chemical change
12: physical change
13: physical change
14: physical change
15: chemical change
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