Learning Task 1. Recall/Review
22)
PM
e
From your previous lessons, you learned that matter undergoes two types of
changes. These are physical change and chemical change. Physical change involves
only a change in the appearance but not in composition of the material. Chemical
change involves not only change the appearance of the material but also its
composition.
Directions: Consider the following examples of changes. Classify them as Physical or
Chemical change. Write your answers on your answer sheet.
Change
Type of Change
1. healing of wounds
2. rotting of banana
3. opening a carbonated soft drink
4. dissolving sugar in water
5. painting a piece of wood
6. photosynthesis
7. crushing chunks of ice
8. milk turning sour
9. ice cream melts under the sun​