During a camping trip, Sierra collected dry branches and broke them into smaller pieces. She then placed the sticks in a fire pit and used a match to light the sticks on fire. Next, she propped a metal pan of water over the fire and heated it until the water boiled.
Which list correctly describes physical and chemical changes that occurred in this scenario?
A. physical change: breaking sticks
chemical changes: lighting the fire, boiling water
B. physical change: boiling water
chemical change: breaking sticks, lighting the fire
C. physical changes: lighting the fire, boiling water
chemical change: breaking sticks
D. physical changes: breaking sticks, boiling water
chemical change: lighting the fire
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