Rainbow second grade composition is 200 words.

Rainbow has seven colors, just like ribbons hanging in the sky, bending into a beautiful overpass. The following is a 200-word second-grade composition about rainbow that I carefully arranged for you. I hope it will help you.

rainbow

At noon the day before yesterday, I played happily in the open space outside the classroom. Suddenly, I don't know who shouted: Wow, look, what a beautiful rainbow! ? He pointed to the rainbow with his finger and looked in the direction he pointed. I couldn't help saying, Ah, there really is a rainbow! ? Let me take a closer look, my mother! How can a rainbow be round?

After returning to China, I looked it up on the Internet and suddenly realized that the earth itself is a sphere, and the atmosphere covers the surface of the earth, so the relationship between light refraction and medium is in the same medium.

Next, the refraction angle is the same, the center of the sphere is a circle, and the edge of the circle is a straight line with the same angle, resulting in a circular rainbow.

I am so happy, I have a new one!

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In the evening, when our whole family was having dinner, we only heard menstruation crying on the balcony. Come and see, there is a rainbow! ? My brother and I hurried to see the rainbow. Wow, the rainbow is really beautiful! Seen from a distance, a rainbow hangs in a tall building in the distance. Do you have red, yellow, blue and green? Like a colorful bridge between the building and the sky. I feel as if I were dreaming. I've only seen rainbows in books before, and I've heard my mother talk about rainbows, but I haven't really seen them. I finally got what I wanted today. I'm so happy! I really hope that one day I can walk on this rainbow bridge and embrace that lovely little cloud.

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I got up this morning, and the weather was particularly sunny. My family went to the suburbs to play. When I came back in the afternoon, it suddenly began to rain. A beautiful rainbow appeared in the sky after the rain stopped. I have only seen rainbows in books before, but now I finally see rainbows with my own eyes. I can't help shouting: rainbow? The eyes of the whole family are fixed on the rainbow for fear that it will suddenly go away. Rainbow is like a beautiful overpass, shining softly and attracting attention. Looking around, the rainbow has only three colors: red, yellow and green. Look carefully, it seems that there are really seven colors: red, orange, yellow, green, cyan, blue and purple. It was so beautiful that in a short time, the rainbow disappeared without a trace. Alas, this is really a naughty rainbow!

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In the magical nature, there are many problems worth thinking about. For example: apples will turn black after being cut, sunflowers will rotate with the sun, and so on. I stumbled upon the principle of rainbow after rain.

One day, I was playing on the grass with some friends when it suddenly rained. We couldn't go home for a while, so we had to hide in a small pavilion. It only rained for a while, and then it stopped. Suddenly, Xiao Ming saw the rainbow, and he cried out in surprise? How beautiful! ?

Xiao Liang said? What happened? I know what the principle is! ?

? Really? We said with one voice.

Of course it's true. If you don't believe me, let me tell you something

Xiao Liang said? Rainbow is formed by the reflection and refraction of sunlight in the air into water droplets. We know that when sunlight passes through the prism, the direction of the foreground will be deflected, and the original white light will be decomposed into seven bands: red, orange, yellow, green, cyan, blue and purple.

? Great! ? We said it together.

Yes! As long as you carefully observe the dribs and drabs in your life and be good at thinking, you can get unexpected gains.

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? The language of nature is really wonderful. ? I also found a wonderful place.

Once, I came to Hukou Waterfall to play, and suddenly a gorgeous rainbow appeared.

This rainbow bends like a rainbow bridge. Is it formed by the abandoned colored stones in "Goddess of Mending Heaven"? This rainbow has colorful neon lights and looks foggy on the Yellow River. I carefully observed this rainbow, and a question flashed through my mind: Ordinary rainbows appear after rain, so why are there rainbows over waterfalls? I came home with questions and looked at the data. The data shows that there are raindrops in the air after the rain, which are reflected by the sun. I thought: Will the water droplets in the waterfall reflect the rainbow?