Quizzes & Puzzles6 mins ago
Why can't I get clear ice cubes
00:00 Mon 30th Jul 2001 | How it Works
A.� Because the tap water you use contains dissolved air, which is forced out of solution, forming a gas bubbles when frozen, creating cloudy ice cubes.
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Q.� Why are the edges often clear and the inside of cubes cloudy
A.� Because the air around the edges of ice cubes trays freezes first, forming pure clear ice, because the remaining as yet unfrozen liquid can still absorb the air while the newly formed ice cannot hold dissolved air as easily.
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Q.� Why are ice cubes in advertisements clear
A.� Because they're not ice cubes! For the sake of aesthetics they're probably made out of Perspex.
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Q.� Other than faking my ice cubes is there anyway I can get clear ones
A.� Only by investing in a commercial ice machine, which works along the same as lines as when the edges of ordinary ice cubes are clear: they freeze a small amount of available water while allowing a larger body of water, containing the air in solution, to escape.
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Q.� Why does a liquid change to a solid
A.� When an ice tray is filled with water and put in the freezer the temperature of the water is lowered. As the temperature decreases the individual H2O water molecules are loosing energy. In a liquid the molecules have sufficient energy to bounce around within the body of liquid. At a particular temperature for the liquid, the freezing point, the molecules no longer possess the energy to roam around and settle into a regular arrangement and become a solid.
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by Lisa Cardy
