Selasa, 13 Maret 2012

Explanation Text About Snow

Ria Afriani

Water in its pure formis colorless. If there are impurities, the color of the water.Snowcan also take the color of other objects. For example, in the case of deep glacier ice blocks appear blue. But the snow is slightly different from the ice. Snow is a collection of small ice crystals and interconnected. Ice is clear and color less as the accumulation of crystals combine to form snowflakes.

Snow invisible to us because of the light.Snow fell from the top to the atmosphere and reaches Earth. Ice crystals allow the light that fall son them to get reflected on its surface. There are some crystal faces and the light because it's also so scattered. Has a wave length of visible light of different light show to us.When light strikes any object to be absorbed somewhere in the reflected light and the other part. Part of the reflected light reaches our eyes and make us recognize colors.

Light falling on the ice crystals do not pass through the glass for long distances, but they tend to change direction. Light reflected at an angle in the ice. As the snow there as a collection of some of the snow flakes on the ground, the light falling on them will not have a specific wavelength this reflected with some regularity. Thus, most of the light falling on the snow almost entirely be reflected back. The light that is reflected in the snow will stay white for most of the time as the total light and the reflected wavelength. Therefore, the snow is white.

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