Across
- 4. a piece of paper catching on fire
- 7. a puddle drying up in the sun
- 8. combining baking soda and vinegar
- 9. a bike chain turning orange over time
Down
- 1. water turning into ice
- 2. sugar disappearing in hot tea
- 3. slicing a piece of paper in half
- 5. an ice cube turning into water
- 6. putting a cookie in the oven