A picture of a marshmallow being roasted over a fire is shown, sort the following statements and decide whether they’re true or false.

Question

1. The wood burning in the campfire has a chemical property for being combustible.
2. The marshmallows are undergoing a physical change only.
3. The smoke coming off of the fire, wood, and toasted marshmallows is a form of matter.
4. The roasting marshmallows are undergoing a chemical change as they toast.

Answer 1

Let's evaluate each statement based on scientific principles:

1. The wood burning in the campfire has a chemical property for being combustible.
   True. Combustibility is a chemical property of materials that indicates their ability to burn in the presence of oxygen.

2. The marshmallows are undergoing a physical change only.
   False. While the marshmallows may initially undergo physical changes (like melting and browning), they also undergo chemical changes, like caramelization and Maillard reactions, as they toast.

3. The smoke coming off of the fire, wood, and toasted marshmallows is a form of matter.
   True. Smoke is made up of tiny particles and gases and is considered a form of matter.

4. The roasting marshmallows are undergoing a chemical change as they toast.
   True. The toasting process involves chemical changes due to the breaking down of sugar and other compounds, leading to the browning and flavor changes associated with roasting marshmallows.

To summarize:

1. True
2. False
3. True
4. True