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What must often be added to increase the speed or ability of 2 substances to react?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
Which physical change does a swamp cooler use to cool the air?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
The boiling point of water at sea level is 100 degrees Celsius. What phase would you expect water to be in if it were heated to 110 degrees Celsius?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
How does adding heat affect liquid water?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
As warm air rises, it cools, condenses and freezes in the upper atmosphere. What happens as it falls back to Earth?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
Toni & Juan decide to do an experiment where one will drop food coloring into hot water; the other will do the same in cold water. Based on your knowledge of energy, predict the results
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
When lighting a match, why must it be drawn rapidly along a rough surface?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
What does liquid water need to change into water vapor?
Liquid to gas
It undergoes a physical change from a solid to a liquid
Adding heat
The coloring will move through the hot water faster because hot water has more energy
Its molecules move faster
To provide heat to start the reaction
Gas, because all the molecules have enough energy to have escaped at 110 degrees
Heat energy
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