Question 26

Question

Are the following examples a chemical or physical changes?

Column A.
1. A sliver spoon tarnishing
2. Blowing a dandelion
3. Building a sand castle
4. Toasting bread

Column B.
A. Chemical change
B. Physical change

Answer 1

Column A:
1. A silver spoon tarnishing - Chemical change
2. Blowing a dandelion - Physical change
3. Building a sand castle - Physical change
4. Toasting bread - Chemical change