While camping, you make a snack over a campfire. You roast a marshmallow over the campfire until it is browned and put it between some chocolate and graham crackers. When you take a bite, you notice that the chocolate and marshmallow have melted slightly.

Question

Which statement correctly identifies a part of this process as a physical or a chemical change?

(1 point)
Responses

The digesting of the food is a physical change.
The digesting of the food is a physical change.

The toasting of the marshmallow is a chemical change.
The toasting of the marshmallow is a chemical change.

The burning of the wood for the campfire is a physical change.
The burning of the wood for the campfire is a physical change.

The melting of the chocolate is a chemical change.

Answer 1

The correct statement is:

The toasting of the marshmallow is a chemical change.

Toasting a marshmallow involves heating it, which causes a chemical reaction and results in the formation of new compounds (like caramelization) and changes in the structure of the marshmallow. The other options incorrectly classify processes that are primarily physical changes (like the melting of chocolate) or do not accurately describe the nature of digestion or burning wood.