Question

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​

Answer 1

Answer:

physical changes

1,3,4,5,6,8,9,12,14,15

Chemical changes

2,7,10,11,13

This what i think

hope it helps

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