ACTIVITY 10. Observation: Write what happen in each material in the presence of heat and oxygen. Process Evidences of Change

Example: Burning newspaper Paper ash

1. Burned pancake
2. House gate with no paint for 3 years
3. Overcooked rice
4. Overripened tomato
5. Leaves exposed in the sunlight for a week
6. Metal chain outside the house for months
7. Boiling water left for hours on the stove
8. Girl playing under the sun for hours
9. Burning of white paper
10. Overheated car engine ​