Across
- 1. When carbon monoxide and carbon dioxide that have 2 or more atoms are bounded together
- 2. temperature any higher than 0 degrees Celsius
- 4. When a house catches on fire
- 5. when you can touch an ice cube when it's solid
- 8. How a bowling ball and basketball are about the same size and take up the same amount of space
- 10. What causes ice to float on water ?
- 11. Includes protons and neutrons
- 13. What happens when you cut a piece of paper with scissors ?
- 14. Substance using elements like : hydrogen , helium , carbon , etc.
Down
- 1. can only be observed when undergoing
- 3. An object that takes up space
- 6. When you burn a mixture of air an kerosene vapor
- 7. Additional heat to melt ice into liquid water and turn water into steam
- 9. temperature about 100 degrees Celsius
- 12. Has a variable composition , can be either homogeneous or heterogeneous