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(Kelly of the Clue Crew shows some high-tech devices.) Both LCD TVs & mood rings use liquid crystals, however, the crystals in LCDs reflect color by using electricity &mood ringsuse this type of energy |
heat
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$400 |
J |
BASIC SCIENCE |
2011-01-19 |
#6068 |
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The second law of thermodynamics says that this will of its own accord only move to a colder object |
heat
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$1,200 |
DJ |
SCIENCE |
2010-10-21 |
#6004 |
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Combustion is an example of an exothermic reaction, one in which this is released |
heat
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$400 |
DJ |
PHYSICAL SCIENCE |
2006-10-10 |
#5077 |
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Phosphorescence is defined as giving off light with little or none of this |
heat
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$800 |
DJ |
PHYSICAL SCIENCE |
2006-05-31 |
#5013 |
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Friction, as when a brake pad slows a wheel, converts kinetic energy into this |
Heat
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$400 |
J |
SCIENCE CLASS |
2001-03-07 |
#3808 |
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A chemical reaction that absorbs this is endothermic; that gives it off, exothermic |
heat
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$600 |
DJ |
SCIENCE |
1991-06-04 |
#1572 |
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Measured in calories, it's transferred between objects by conduction, convection & radiation |
heat
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$800 |
DJ |
SCIENCE |
1991-02-11 |
#1491 |