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Welcome to... A Game of X’s and O’s

Scoreboard X O Click Here if X Wins Click Here if O Wins

1 A liter of gasoline will boil at… a. a higher temperature than a milliliter of gasoline. b. a lower temperature than a milliliter of gasoline. c. the same temperature as a milliliter of gasoline. d. the same temperature as a milliliter of water.

1 c. the same temperature as a milliliter of gasoline. Home

2 In order for carbon dioxide gas to enter the air from dry ice, particles in the dry ice must: a. gain energy; b. boil; c. increase in pressure; d. undergo an exothermic change.

2 a. gain energy.

3 What occurs to a liquids particles, when a liquid becomes a gas?

3 The particles break away from one another.

4 How do the particles of water that evaporate from an open container differ from the particles that remain?

4 The evaporated particles have more speed and higher energy.

5 It is the result of freezing.

5 Solid

6 Solid dry ice changes to carbon dioxide gas through what change of state?

6 evaporation

7 A graph that shows the change in temperature of a substance as it is heated will show a. a straight line as the substance melts; b. a straight line as the substance freezes; c. a rising line as the substance melts; d. a falling line as the substance melts.

7 a. a straight line as the substance melts

8 The reverse of condensation is

8 evaporation

9 The melting point of water is the same as its

9 Freezing Point

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