Essay Why is the grass so green?

You can imitate "why are flowers so red".

We live in a colorful world with blue skies, white clouds, red flowers, and green meadows. Do you know why grass is green? Let's take a look at it.

Grasses are green because their leaves contain a substance called chlorophyll. Chlorophyll is a substance that uses water, air, and sunlight to make nutrients that plants need, a process called photosynthesis. Photosynthesis not only allows plants to grow, but it also releases oxygen that gives us breath.

Chlorophyll reacts differently to different colors of light in sunlight. It absorbs red and blue light and reflects green light. So when the sun shines on the grass, what we see is the reflected green light, so the grass appears green.

Of course, not all grass is green. Some grasses have less chlorophyll when they are first born, so they are lighter in color. Some grasses turn yellow or red in autumn because the chlorophyll decreases as the temperature drops, while other pigments appear.

Some grasses produce other colors of chlorophyll in extreme environments.

When writing an essay on why grass is green, you can write it using the ideas of scientific explanations and natural observations. This idea of writing can help the reader understand why grass is green and support the argument through scientific explanations and observations of facts.

First of all, it can be explained why grass is green from the perspective of light. Introduce the composition and reflection principle of light, explain that light is composed of light waves of different colors, and grass is able to absorb light waves of other colors and only reflect green light waves, so what we see is the green color of grass.

Then, it can be further explained why grass is able to absorb light waves of other colors. Chlorophyll can be mentioned here as a key factor, explaining that chlorophyll is a pigment in grass leaves that absorbs light energy and converts it into chemical energy for photosynthesis in plants. Chlorophyte hail absorbs green light wavelengths most efficiently, so grass leaves appear green.

This explanation can then be supported by actual observations. For example, look at different types of grasses or plants and compare their leaf color and light reflection characteristics. Some experiments or research results can be mentioned to further verify the scientific reasons why grass is green.

Finally, one can summarize the importance and significance of why grass is green. The green color of the grass gives people a sense of nature, vitality and harmony, and also plays an important role in the ecosystem. Mention can be made of the contribution of grass to environmental protection, oxygen release and soil conservation.

By applying the ideas of scientific explanations and natural observations, the composition can be made more credible and scientific, helping readers understand why grass is green. At the same time, it can also arouse readers' curiosity about plants, colors and the natural world, and promote the study and thinking of natural science.

Xiaocao is an ordinary plant, a plant that no one likes, but it is very strong, very tenacious.

Once, a poet wrote a poem to praise the tenacious vitality of the grass: "Leaving the grass on the plain, one year old, one withered and one prosperous." The wildfires are inexhaustible, and the spring breeze blows and grows. ”

In summer, the fierce sun basks the weak grass, evaporating the water in the grass, and the grass hangs on the ground in frustration, lifeless. I thought that the socks would not be able to hold on to the grass and would die. However, soon after the sun went down, the grass slowly stretched out its leaves, and it seemed to say to the sun

I'm not afraid of the heat! We are not afraid of 50 degrees, we will fight you to the end. ”

In winter, the thick snow covers the grass, holding their breath and allowing them to fall asleep in the snow. But Xiaocao is still persistent, storing energy and waiting for next year. As time passed, the grass exposed on the snow died of frost and frost, leaving only a piece of withered yellow to shiver in the cold wind.

When spring came, the spring breeze girl passed by the grass, and he was very sad to see such a scene, so the spring breeze girl blew a strong wind, and gently brushed the injured grass with her hand, and tears slipped down the grass roots drop by drop. After a few days, Xiaocao woke up from her sleep and slowly poked her head out of the ground, like a newborn baby looking at this beautiful world in amazement. She wore a new green dress.

Standing up straight in the breeze, as if he were a soldier standing guard. He kept saluting the spring breeze girl and said, "We are alive again!"

Thank you! "How strong the grass is! We must be strong no matter what difficulties we encounter in the future! Don't give up! Learn from the grass!

In my childhood memories, the most unforgettable thing for me is the humble grass.

Although the grass is small, he has a tenacious vitality, and he ...... by the river, on the side of the road, and even on the stonesEverywhere we can see the tenacious grass, isn't the tenacity of the grass worth learning?

Spring has arrived! If you burn the grass with a fire now, once the spring breeze blows, the tenacious grass takes root and sprouts, which is exactly what the poet said, "The wildfire burns inexhaustibly, and the spring breeze blows and grows." This also proves the tenacious vitality of Xiaocao.

Spring has passed, and summer has arrived! The grass also danced with the warm breeze, and behold, how elegant and novel the dance of the grass was! Then a worker walked towards Xiaocao, he leaned against the big tree, sat on the grass, came to take advantage of the shade, Xiaocao seemed to understand the worker's mood, and then Xiaocao, who was dancing, suddenly became like a mother with open arms to embrace the worker.

We live in the same blue sky, the same grassland, and the same earth, but in recent years, people have paid less and less attention to environmental protection, and they have become less and less aware of the importance of environmental protection, and people's behavior has continuously polluted the earth's environment.

In the autumn of the previous year, a raging fire broke out in the rice fields. I hurriedly said to my grandfather, "Grandpa, there's a fire there."

My grandfather touched my head, smiled from ear to ear, and said, "Junmao, that's the rice straw in the field that the peasant uncles are burning, and it's not on fire." "The dark smoke in the rice fields rushed into the sky like a devil, violently eroding the cleanliness of the sky, and at the same time stretched out a poisonous hand to me, slipped into my nose while I was not looking, and choked me to tears.

I looked at the smoke and thought, "These gases are harmful to humans!" I'm going to have to stop them from burning the stalks again.

I immediately rushed over and said to them, "Uncle, auntie, please don't burn rice straw in the field. Thick smoke destroys the Earth's ozone layer, and in the long run, it will damage the ozone layer, and it will cause harm to humans and cause people to suffer from diseases.

When they heard this, they looked disdainful, still threw straw into the fire, and said contemptuously: "Who belongs to this child of yours, don't talk nonsense if you don't know, what's the harm of burning straw, what do you know!" When I heard this, I immediately became angry, but I couldn't say anything more.

After this incident, I had a lot of thoughts about how burning rice straw in the field would not only pollute the environment, but also harm people's bodies, burning a large number of beneficial microorganisms in the soil. Besides, isn't there a lot of use for straw? Straw can be used to make paper, fertilizer, etc., the rational use of straw can not only protect the environment, but also do not harm people's bodies, why do farmers burn straw?

Environmental protection is not just a slogan, but also requires our efforts. I call on farmers to stop burning straw immediately, or pile it up at home, and dispose of it properly, so that it can be sent to factories so that workers can use it to produce paper, fertilizer, building materials, and also use it for cooking at home.

We only have one earth, we must take care of the earth, strive to be a little environmental guard, and strive to realize our green dreams. Let the sky be bluer, the grass greener, and the environment more and more beautiful!