Cambridge Secondary (7-9). Stage 7. MCE Science. Student Book - Unit 9: Chemical Reactions - Question 9

Look at Figure 9.2. The photographs all show changes happening.

a. Sugar dissolving in hot tea



b. Bread being toasted



c. Iceberg melting



d. Mould forming on food



e. Wood burning



Which are physical changes and which are chemical changes? Record your answers and your reasons in a table like the one below.

| Change | Physical or chemical, and why? |
|---|---|
| a | |
| b | |
| c | |
| d | |
| e | |