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How Does Ice float?
A cool glass of water topped with huge chunks of ice is sure to quench your thirst on a hot summer day. But, before you guzzle the water, look at how the ice floats on the water surface. How do these large ice pieces manage to stay afloat? Ice floats because it is less dense than water. (If you take a one-litre container with ice and weigh it, it will be lighter than a similar container with water....
How Is Jelly Formed?
Had a good dinner? Now how about some cool custard with jelly on the side for dessert? Doesn’t the jelly look inviting, a transparent red-coloured blob sitting pretty on the plate, making you long to dig your spoon into it? Called Jell-O in the United States of America, jelly changes shape with the change in temperature. It stays sets at room temperature, which is between 0 degrees and 20 degree C. Warm it to about 27 degree C and watch it disintegrate into a watery mixture....
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