Freezing, Melting and Boiling Crossword Puzzle

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QUESTIONS LIST:

thermal energy : heat energy
boiling point : the temperature at which a substance changes state from liquid to gas
condensation : the physical change in matter from a gas to a liquid
freezing point : the temperature at which a substance changes state from a liquid to a solid
constant : does not change, stays the same
physical state : the classification of matter as solid, liquid, or gas
temperature : the measurement of heat or cold of an object or environment that is shown in degrees on a thermometer
melting point : the temperature at which a substance changes state from a solid to a liquid
celsius : a temperature scale on which water freezes at 0 degrees and boils at 100 degrees
evaporation : the physical change in matter from a liquid to a gas