1) Are phase changes physical changes or chemical changes? a) chemical b) physical 2) When a substance changes phase of matter, what is changing? a) The energy and motion of the particles b) The identity of the particles c) The energy, motion, and identity of the particles. d) Nothing changes 3) When a substance goes from a solid to liquid, what is happening? a) The energy in increased so it melts. b) The energy decreases so it freezes. c) The energy increases, so it evaporates. d) The energy decreases, which is an example of deposition. 4) When a substance goes from a liquid to solid, what is happening? a) The energy in increased so it melts. b) The energy decreases so it freezes. c) The energy increases, so it evaporates. d) The energy decreases, which is an example of deposition. 5) When a substance goes from a solid to gas, what is happening? a) The energy increases, which is an examples of sublimation b) The energy decreases so it freezes. c) The energy increases, so it evaporates.  d) The energy decreases, which is an example of deposition. 6) When a substance goes from a gas to solid, what is happening? a) The energy increases, which is an examples of sublimation b) The energy decreases so it freezes. c) The energy increases, so it evaporates.  d) The energy decreases, which is an example of deposition. 7) When a substance goes from a gas to liquid, what is happening? a) The energy increases, which is an examples of sublimation b) The energy decreases, which is condensation c) The energy increases, so it evaporates.  d) The energy decreases, which is an example of deposition. 8) When a substance goes from a liquid to gas, what is happening? a) The energy increases, which is an examples of sublimation b) The energy decreases, which is condensation c) The energy increases, so it evaporates.  d) The energy decreases, so it evaporates. 9) When water droplets form on the OUTSIDE of your glass of ice water, what is happening? a) evaporation b) condensation c) freezing d) deposition 10) At what temperature does water boil? a) 100° F or 212° C b) 100°C or 212°F c) 0°C or 32°F d) 32°C or 0°F 11) At what temperature does water melt? a) 100° F or 212° C b) 100°C or 212°F c) 0°C or 32°F d) 32°C or 0°F

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