Thishappens when the temperature in the clouds is very cold. Snowflakes are made up of crystals of ice that have formed around bits of dirt in the air. The snowflakes start out very small and grow. Each snowflake is different and might contain up to 200 crystals. Which paragraph is the explanation? Aray of light being refracted in a plastic block. In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction. First we can use water which spraying. We have been known that rainbow happens during the sun light run through the droplets water of rain. When morning or evening, spray the water under the sun light, then see the droplets water which is flying. Spraying the waters and we can see a small rainbow and can we touch. Explanationis a text which tells processes relating to forming of natural, social, scientific and cultural phenomena. Explanation text is to say why and how about the forming of the phenomena. SOCIAL FUNCTION/ PURPOSE : 1. To explain why things are as they are and how they are formed or made 2. Fillthe glass with water. Cut a narrow rectangle in the middle of one piece of paper. Stick that paper to the outside of the glass so that the slit is at the center. Place the other piece of paper on the floor on the other side of the glass to catch the rainbow. In a pitch dark room, point the flashlight at the slit. Rainbowis one of optic phenomena that happens in the atmosphere of the earth naturally. We can see it at mountin range, or when it is cloudy, or when it is raining and rising of sun. We have to be the other side for looking. We just can see it a half of circle form, but acctually the rainbow is a circle form. .

how rainbow is formed explanation text pdf