Question

Match the columns.

| Column A | Column B |
| 1. A change which cannot be easily reversed | (a) man-made change |
| 2. A change that repeats itself at regular intervals | (b) chemical change |
| 3. A change that made by humans | (c) physical change |
| 4. A change in which the original substance cannot be obtained | (d) periodic change |
| 5. A change where no new substance is formed | (e) irreversible change |

Answer 1

| Column A | Column B |
| 1. A change which cannot be easily reversed | (e) irreversible change |
| 2. A change that repeats itself at regular intervals | (d) periodic change |
| 3. A change that made by humans | (a) man-made change |
| 4. A change in which the original substance cannot be obtained | (b) chemical change |
| 5. A change where no new substance is formed | (c) physical change |