The event that serves as an indicator of a physical change while baking cookies is chocolate chips melting. Melting is a physical change because it involves a change in state (from solid to liquid) without altering the chemical composition of the chocolate. The other options indicate chemical changes, such as the smell of cookies wafting from the oven, which suggests that new compounds are being formed during the baking process.
Which event that takes place while baking cookies is an indicator of a physical change?
(1 point)
Chocolate chips melting
• Smell of cookies wafting from the oven
• Ingredients (flour, salt, sugar, milk, etc.) baking together in the oven
• All events are indicators of a chemical change
1 answer