Question

6 shivani finds a soft off-white object about the size and shape of a marshmallow. shivani decides to heat the object over a flame. predict what shivani might see if a chemical change takes place.

Explanation:

A chemical change involves the formation of new substances. When heating a marshmallow - like object over a flame, if a chemical change occurs:

• Color change: The off - white color might change. For example, it could turn brown (due to the Maillard reaction if it contains sugars and proteins) or even black (if it charrs, which is a form of carbonization).
• Release of gas or smoke: As the complex organic molecules in the object break down, gases (such as water vapor, carbon dioxide) can be released. This might be visible as smoke or steam rising from the object.
• Change in texture: The soft texture could change. If it charrs, it might become brittle. Also, if there is a chemical reaction that causes cross - linking of molecules (like in some protein - sugar reactions), the texture could become more rubbery or firm in a new way.

Answer:

Shivani might see a color change (e.g., browning or blackening), release of gas/smoke, and a change in texture (e.g., brittleness or a new firmness).