The day is coming to an end. During this day, there must be some interesting experiences around you. Let us write a diary seriously. Are you at a loss to write or have a clue? The following is a 500-word diary sample for the fourth grade of sericulture that I collected and compiled (generally 6 articles). I hope it will be helpful to everyone. Diary of Grade 4 Silkworm Raising 500 Words 1

A month ago, I got a special ‘gift’ in Chinese class—silkworm babies. After getting these little silkworm babies, many questions arose in my mind: How do they eat? How do you poop? So, I carried out careful observation with these questions.

The silkworm baby looks very cute. It has a body as long as a large French fries, but its head is only as big as a grain of rice. There are two pairs of black bracket-like patterns on its back, which are probably used to scare natural enemies. However, after the skin sheds, the pair of brackets are gone, and it will take some time to recover.

There is a small thorn on its tail. When it is in a bad mood or injured, the small thorn will soften. Silkworm baby has three pairs of thoracic legs and four pairs of ventral legs plus a pair of tail legs. Its ventral legs are used to fix itself, and its tail legs are used to clamp objects, while its thoracic legs are its The real feet are used to help it grasp food and facilitate its eating. When it grows up, it will lose its abdominal and tail legs, becoming an insect with only three pairs.

The way silkworms eat mulberry leaves is very interesting. It first grabbed the mulberry leaves with its thorax and legs, then raised its head, like an excavator, and sent the mulberry leaves into its belly again and again in an orderly manner from top to bottom. After a while, a mulberry leaf was Gone.

When I was raising them, I also discovered another strange thing: the stools they excreted were almost the same size, like sesame seeds, black and small, solid in shape but somewhat elastic, and with Corn-like pattern. I opened it and took a look and found that it was full of mulberry leaf foam that the silkworms had not digested, and it also had a refreshing fragrance.

After so many days of observation, I found that silkworms are really selfless. It eats mulberry leaves so hard throughout its life just to spin silk and make cocoons so that we can have warm clothes and quilts to enjoy. I finally understood the true meaning of the saying "Spring silkworms will not run out until they die". Diary of the fourth grade of silkworm rearing, 500 words 2

"The spring silkworms will not run out of silk until they die, and the wax torch will turn to ashes before the tears dry up." This month, I finally experienced the short life of silkworms.

Silkworms came to my home for the first time. They lay on the green mulberry leaves and busily "painted" all day long. At the end of the day, pieces of mulberry leaves become their "works". At the beginning, the silkworm babies only need to feed 2 to 3 mulberry leaves every day: no matter whether they are fresh or not, the silkworm babies always eat with gusto and their bellies are full and round.

Gradually, the silkworm babies grow up and their tastes become more and more picky: they insist on eating fresh mulberry leaves. So every day I have to pick some mulberry leaves from the mulberry trees on the roadside. When I got home, I carefully placed the silkworms on the green mulberry leaves. The silkworms immediately took big mouthfuls of the delicious food without saying a word. They were like hungry and lost children encountering delicious food. The way they gobbled it up made people feel very distressed. Shh! Listen carefully: the sound of silkworms chewing slowly is like the rustling of leaves, crisp and bright. I saw them sniffing in the east and biting in the west. They were delicious.

In the evening, they will give me some mulberry leaf "artwork". With the silkworms' large diet, at least 3 palm-sized tender leaves are placed every day to keep them slightly satisfied. For two weeks, I picked all the young leaves from a big mulberry tree. "Although silkworms are small, they eat a lot of food. As long as there are silkworms, all the mulberry leaves can be taken care of." I couldn't help but write a limerick. At night, I still took the mulberry leaves to feed them. I quietly put it next to the silkworm, and the silkworm took a bite. Then I took the mulberry leaf over there, and the silkworm crawled over. I put it here again, and the silkworm came over again. What a snack! Hard work always pays off. One morning, I got up to see the silkworms. ah! There are already two white and thick cocoons in the "Mulberry Leaf House". I touched it and it was soft. Immediately a sense of pride sprouted in my heart.

I held the mulberry leaves and encouraged the remaining silkworms: "Come on, friends!". Diary of Silkworm Breeding for Grade 4, 500 Words 3

Every spring when it gets a little warmer, the season when the vegetation sprouts new buds is also the season when silkworm babies are born.

I forgot what grade I was in at that time. A friend showed off to the class with a silkworm egg: This can hatch silkworms! Silkworm eggs are smaller than sesame seeds and are densely packed on the paper. How can they hatch into life if they are so small?

I was very excited and asked my classmates to get silkworm eggs. They must be in even numbers. After the silkworms turn into moths, they will pair up in pairs. Carefully wrap them in toilet paper, layer by layer, and put them in your pocket. I take it out from time to time to see if silkworms have hatched, but there is no change every time. I am neither anxious nor impatient. I know that if I wait slowly, there will always be surprises. I am not so confident about the final exam.

Opening the toilet paper accidentally, silkworms came out! It's a small black insect. It's very difficult to crawl, which makes people feel distressed. I wonder how it can fit inside the silkworm egg? I couldn't wait to put them into the clean and beautiful box that I had prepared a long time ago, along with fresh mulberry leaves, washed and dried.

Watch them with wide eyes as they eat mulberry leaves. It will take a long time to see pinhole-sized holes on the mulberry leaves. Don't be anxious or impatient, I know the silkworm babies will grow up slowly. I’m not that concerned about whether I’ve grown taller or not!

I take them to and from school every day. If I meet a classmate on the way and want to take a look, that is absolutely not allowed. I don’t know who I’ve heard say that silkworms can’t see the sky. For fear of any accident, I always keep the box well covered outside. During class, I can't help but wonder if they are sleeping or eating. When the teacher is not paying attention, he quickly takes a look at my little darlings. Even when the teacher saw him and was criticized, he still had a silly smile on his face. Don't be anxious or impatient. If you were criticized for doing other things, it wouldn't be such a good attitude. Diary of fourth grade silkworm raising 500 words 4

"Great! Great!" The science teacher said that we can raise silkworm babies. We were all excited and dancing.

Today, I found that my silkworm egg, which was as big as a sesame seed, had hatched. It was small, thin, and had a brown body. I picked up Miss Silkworm's house and ran out of the classroom and quickly ran to the science teacher's office to find Teacher Xu. I heard Teacher Xu say: "This is an ant silkworm. The second stage of Miss Silkworm's childhood is just like when you were born." I nodded. Head, quickly walked back to the classroom.

After a few days, my silkworm baby changed into new clothes. The body was yellow, but the head was still black. They kept eating the mulberry leaves. I took a look with a magnifying glass and found that the silkworms were shaking their heads to eat the mulberry leaves, and they were holding the stalks of the mulberry leaves with their feet. Silkworms make a "rustling" sound when they eat mulberry leaves. I thought it was the sound of rain outside!

A few days later, my silkworm baby changed into a beautiful new dress, which was white. I also eat more mulberry leaves than before. I asked Teacher Xu like I had a hundred thousand questions, and learned from the teacher that this was the second instar silkworm, and that the silkworm girl had to change into new clothes five times.

After some time, the silkworm baby is still the same as before, but it has grown up. Suddenly one day I found that my silkworm babies were yellow and shiny. They stopped eating mulberry leaves and spit out a lot of thin silk. I asked the teacher again, and Teacher Xu said: "The silkworm baby is about to turn into a pupa. You can wait for it to make a cocoon with silk, and then use a toothpick to take out its silk! After a while, it will turn into a moth." < /p>

I smiled and nodded, expecting it to turn into a flying moth. The teacher also told me that silk can be used to make clothes. Many of the clothes we wear are made of silk, including silk quilts.

Silkworms are amazing! Diary of fourth grade silkworm rearing 500 words 5

When I was in music class on Friday night, a good friend of my class brought some newly born silkworm babies. She gave me dozens of silkworm babies, and I divided them among A few other students took some, and the remaining twenty or so took them home.

In the car going home, I kept holding the silkworm babies in my hand to watch how they eat the mulberry leaves. I accidentally knocked over the small box containing the silkworm babies, and the silkworm babies were scattered on the car. I hurried to be careful. Pick them up one by one.

As soon as I got home, I put the silkworm babies in the box of my new shoes, wiped a few mulberry leaves clean with a dry towel, and tore them into small pieces and placed them near their heads. The silkworm babies were happy. It's time to eat. The next day I went to see the silkworm babies as soon as I got up. But why didn’t the silkworm babies eat mulberry leaves?

It turned out that the mulberry leaves I put in last night had dried up overnight and the little silkworms couldn’t bite them. I went to the refrigerator to look for mulberry leaves again. There were not many mulberry leaves I brought back last night. . My parents and I decided to go out to find mulberry leaves for the silkworm babies. My mother called an aunt and said that there was a mulberry tree by the river in the university town. We went to the university town and searched there for two days. I circled and looked carefully at every tree, but I couldn't find the mulberry tree! We had no choice but to go home and ask at the vegetable market. An uncle selling vegetables said that he had seen a mulberry tree in a certain place and told us the location in detail. In the afternoon, my father went out to look for it again, and finally found and picked some fresh mulberry leaves and brought them home. I happily said "Thank you!" to my father.

Now I have to feed the silkworms mulberry leaves twice a day. , in two days we will have to clean up the silkworms’ home, clean up the dried leaves and the smelly silkworms, so that the silkworms can grow up well. Diary of the fourth grade of silkworm rearing, 500 words 6

One day, my father came over with a square piece of paper. I asked dad what that was? Dad said: "Don't you want to raise silkworms?" I was fascinated when I saw it. I didn't expect that something no bigger than a sesame seed was still alive.

I found a big box, wrapped the silkworms layer by layer in cotton, and placed them carefully in the box. When the weather gets warm, I put the box on the balcony and opened the cotton, revealing the small black silkworms. The soft sunlight shines on the silkworms. I hope the silkworm babies will be born soon.

One day, I was surprised to find that little silkworms were born quietly. The little silkworms were black and not cute at all.

Silkworms are white, so why are they black? I was a little disappointed. After hearing this, my father said to me: "This is called ant silkworm. Silkworms make a living by eating mulberry leaves. Only when they continue to eat mulberry leaves do their bodies turn white. Silkworms have to shed their skin four times in their life. They will not move even if they are not eating." , this is called dormancy. After four molts, it becomes a larvae and begins to spin silk and form a cocoon. It takes two days and two nights to form a cocoon, and molts once in the cocoon to become a pupa. After about ten days, it becomes a silk moth and emerges from the cocoon. It is the short and hard-working life of a silkworm."

My father’s words made me feel like a treasure. I knew the basic knowledge of raising silkworms, and I felt confident. The silkworm babies began to thrive under my careful care. I continued to observe the growth of the silkworm babies every day. , one day, I found that the silkworms had turned white. I also knew that the silkworms were small and had a big appetite. Once, I put a lot of mulberry leaves, and they were eaten up by the silkworms in less than half a day.

The days of raising silkworms go by very quickly. My silkworm babies are growing rapidly, constantly shedding their skin, spinning silk and forming cocoons, and finally starving and giving birth to babies. Every change of it brings me surprises and insights. . It allowed me to fully understand the beauty of life and feel the loveliness of life. We should have the spirit of selfless dedication like silkworms and have a beautiful life like silkworms.