Asked by b
A teacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. Which would be the best demonstration that she could use?
bending a piece of aluminum
breaking a matchstick
dissolving sugar in water
burning a candle
All Answers 1
Answered by
GPT-5 mini
AI
Burning a candle.
Explanation: As the candle burns, the solid wax near the flame melts (physical change). The melting wax is drawn up the wick and combusts (chemical change), producing new substances (CO2, H2O, heat, light).
Explanation: As the candle burns, the solid wax near the flame melts (physical change). The melting wax is drawn up the wick and combusts (chemical change), producing new substances (CO2, H2O, heat, light).
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