Which process is endothermic?
A) burning wood in a fireplace
B) heating water to convert it to steam
C) burning gasoline in a combustion engine
D) digesting food
Correct Answer:
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Q20: A mixture of iron,salt,and sand can be
Q21: Which example has the MOST kinetic energy?
A)
Q22: Which statement is NOT accurate?
A) Scientific laws
Q23: Liquid gasoline is heated and becomes gasoline
Q24: Which example BEST describes something moving to
Q26: A highly reactive chemical compound reacts with
Q27: After testing and refining ideas,scientists often develop
Q28: A patient arrives at a doctor's office
Q29: Energy harvested by plants from sunlight allows
Q30: Which example undergoes continued testing and refinement
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