Question

Identify whether each example represents a physical or chemical change.
[Title] Physical Change Chemical Change
Popping a balloon


Crumpling a piece of paper


Baking a cake


Dying hair


Ice melting


Bubbles forming in a glass of soda


Paint fading


Burning of Gasoline


Folding aluminum foil

Answer 1

Here's the classification of each example as either a physical or chemical change:

| **Title** | **Physical Change** | **Chemical Change** |
|---------------------------------------|---------------------|---------------------|
| Popping a balloon | ✓ | |
| Crumpling a piece of paper | ✓ | |
| Baking a cake | | ✓ |
| Dying hair | | ✓ |
| Ice melting | ✓ | |
| Bubbles forming in a glass of soda | ✓ | |
| Paint fading | ✓ | |
| Burning of gasoline | | ✓ |
| Folding aluminum foil | ✓ | |

In summary:
- **Physical changes** involve changes in form or appearance but not in chemical composition.
- **Chemical changes** involve a change in the substance's chemical composition, resulting in the formation of new substances.