Question
Use an image of a marshmallow burning over a fire to determine which statements are true.
A. Burning campfine wood is a chemical change.
B. Burning campfire wood is a physical change.
C. The heat produced by the fire physically changes the surrounding air.
D. Toasting marshmallows results in a chemical change.
E. The heat produced by the fire chemically changes the surrounding air.
D. Toasting marshmallows results in a physical change only.
A. Burning campfine wood is a chemical change.
B. Burning campfire wood is a physical change.
C. The heat produced by the fire physically changes the surrounding air.
D. Toasting marshmallows results in a chemical change.
E. The heat produced by the fire chemically changes the surrounding air.
D. Toasting marshmallows results in a physical change only.
Answers
GPT-4o mini
Based on the context of burning and toasting marshmallows and campfire wood over a fire, here are the evaluations of each statement:
A. **True** - Burning campfire wood is a chemical change because it transforms the wood into ash, gases, and other substances through combustion.
B. **False** - Burning campfire wood is not a physical change; it results in new substances being formed, which characterizes a chemical change.
C. **True** - The heat produced by the fire can physically change the surrounding air, such as warming it up, though the air itself does not undergo a chemical transformation.
D. **True** - Toasting marshmallows results in a chemical change. When marshmallows are toasted, the sugars caramelize and can produce new flavors and compounds due to the heat.
E. **True** - The heat produced by the fire can chemically change the surrounding air, such as through the production of smoke or other gases as the fire burns.
F. **False** - Toasting marshmallows does not result in a physical change only; it involves both physical changes (melting, browning) and chemical changes (chemical reactions that produce new compounds).
In summary:
- A: True
- B: False
- C: True
- D: True
- E: True
- F: False
A. **True** - Burning campfire wood is a chemical change because it transforms the wood into ash, gases, and other substances through combustion.
B. **False** - Burning campfire wood is not a physical change; it results in new substances being formed, which characterizes a chemical change.
C. **True** - The heat produced by the fire can physically change the surrounding air, such as warming it up, though the air itself does not undergo a chemical transformation.
D. **True** - Toasting marshmallows results in a chemical change. When marshmallows are toasted, the sugars caramelize and can produce new flavors and compounds due to the heat.
E. **True** - The heat produced by the fire can chemically change the surrounding air, such as through the production of smoke or other gases as the fire burns.
F. **False** - Toasting marshmallows does not result in a physical change only; it involves both physical changes (melting, browning) and chemical changes (chemical reactions that produce new compounds).
In summary:
- A: True
- B: False
- C: True
- D: True
- E: True
- F: False