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Isolated SystemsPlay
Entropy increases in isolated systems where energy isn't added or lost. SlideThe universe is the ultimate isolated system, with entropy always increasing.
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Not ReversibilityPlay
High entropy means a system isn't easily returned to its prior state. SlideMelting ice cubes show increasing entropy as they won't reform without energy.
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Order to DisorderPlay
Entropy shows a system's transition from order to disorder. SlideA neat room becomes disordered over time, demonstrating entropy.