Sure enough, in a few days, their black skin really turned white and black, and became beautiful. Sometimes they look up, sometimes they eat mulberry leaves, sometimes they look up and don't eat or drink. I thought: Maybe they will take off the old skins and put on new clothes!
Sure enough, as I expected, they really shed their old skin and put on white and brown skin. Silkworms are large and small, and their patterns are different. Look at it, look at it, especially this big silkworm. I especially like filming it, and it looks up at me. Ridiculous and fun!
My silkworm baby hasn't grown up yet. I will tell you more interesting things when I grow up!
Silkworm rearing diary 250 words
Monday, April 30th is fine.
Silkworm rearing diary
At the beginning of school, the science teacher gave out a bag of science learning tools, which contained silkworm eggs. After a few days, the small silkworm eggs turned from yellow to black, like small sesame seeds. Slowly, the little black silkworm emerged from the inside. My mother said to me, "After four molts, the color will gradually turn white."
Sure enough, in a few days, their black skin really turned white and black, and became beautiful. Sometimes they look up, sometimes they eat mulberry leaves, sometimes they look up and don't eat or drink. I thought: Maybe they will take off the old skins and put on new clothes!
Sure enough, as I expected, they really shed their old skin and put on white and brown skin. Silkworms are large and small, and their patterns are different. Look at it, look at it, especially this big silkworm. I especially like filming it, and it looks up at me. Ridiculous and fun!
My silkworm baby hasn't grown up yet. I will tell you more interesting things when I grow up! If you want to know how, listen to the next decomposition!
Zhejiang Jiaxing xiucheng education group junru primary school No.3
Silkworm rearing 1 100 words
( 1)
Planting mulberry trees
Today, my mother and I planted a small and tender mulberry tree in the small garden.
My mother and I first loosen the soil, dig a hole, then put the young mulberry seedlings in, and finally water them. Planting small mulberry trees.
I will water and fertilize every day to see if the small mulberry I planted has grown up. After a while, my little mulberry finally grows green leaves. With mulberry leaves, the little silkworm will not be hungry. I was very happy, so I quickly asked my grandmother to take me to buy silkworm eggs, and I wanted to raise them well.
(2)
The young silkworm has laid eggs.
One night, I suddenly found that my mother silkworm gave birth to "ant silkworm"!
Why do I say that the newborn silkworm baby is called "ant silkworm"? Because the baby silkworm has just hatched like a little ant, it is called ant silkworm. The ant silkworm will become a silkworm baby in two days.
Silkworm babies grow up eating mulberry leaves and have an appetite after 40 minutes. I put two mulberry leaves in, and they ate with relish around the leaves, and suddenly they saw a small hole in the leaves.
(3)
Silkworms shed their skins.
When I got home from school this afternoon, the silkworm at home gave me a fright. The baby silkworms in the box are going to "commit suicide", one by one, without eating. I saw two little silkworms molting, their heads turning white, and a few little silkworms had fine hairs on their feet.
I read the information about sericulture on the computer and learned a lot about sericulture methods. It turns out that the newly molted silkworm baby has to rest all day. No wonder silkworm babies don't eat mulberry leaves. Why do silkworms shed their skin? Because the silkworm will grow up, the original skin will not hold up and will shed.
Silkworm babies not only bring us infinite happiness, but also bring us thinking!
(4)
Silkworms spin silk.
After school at noon, my mother told me that silkworms spin silk. I jumped up with joy and excitement.
Silkworm babies spit out a lot of transparent silk and wrap themselves inside. Then it forms a cocoon. Silkworm babies' cocoons are like "fingers" and "peanuts"
Listen to my mother: "In a few days, the silkworm baby will become a moth."
Silkworm worms are amazing!
Today, I have six silkworm babies spinning again.
I found that silkworm babies are very similar to raw silkworm babies when they spin silk and form cocoons. My cocoons are white, and some are just golden.
There are two silkworms with transparent and shiny bodies. They don't eat mulberry leaves, climb to one side, tilt their heads and sway.
I asked my mother to put it in another box and spin cocoons for it.
A silkworm vomited a lot of silk, which was oval. How beautiful!
(5)
The cocoon turned into a moth.
Today, the five little silkworms in the cocoon have become moths!
Silkworms are white when they become moths. It takes 40 minutes for silkworm moths to cocoon.
I found that the urine of silkworm moth was red, and I thought it was silkworm moth vomiting blood! Later, I asked my mother, "Mom, why did the silkworm moth vomit blood?" ?
Mother said, "that's the urine of silkworm moths."
These are urine.
(6)
Silkworm moths lay eggs.
One afternoon, I found two female silkworm moths laying eggs!
I have eight silkworm moths born now! There are two silkworm moths end to end, and after a few hours, they begin to lay eggs. I counted the dense silkworm eggs, which dazzled me.
I also found that silkworm eggs laid by silkworm moths will change color. 1 is yellow and the second is black. The silkworm eggs laid by silkworm moths are amazing! It will change color! This is the first time I've seen it!
Silkworm rearing is really interesting. You can not only increase your knowledge, but also exercise yourself and make yourself more passionate about labor. It's killing two birds with one stone.
Guangxi Nanning * * * South No.2 Primary School
550 words of silkworm rearing notes
I don't know where the wind blows recently, but the students are saving their strength. There are more or less one or two children in the drawer, and chubby little silkworms live inside. They just take them out of the drawer and take care of them like babies.
I didn't want to fall behind, so I asked my classmates for some silkworm eggs and raised them.
The silkworm eggs in your hand are dark, it seems to be lit, and it seems that you can still see the little silkworm crawling in the eggs dishonestly. A few days later, you can see the little black silkworm emerge from its shell. At this time, the young silkworm is very small and fragile, and it will die if it is not careful. I used a small paper stick to transfer the newborn silkworm to a small box, put some tender mulberry leaves on it, and the silkworm settled in it.
A few days later, the young silkworm began to shed its skin. At this time, if the young silkworm does not molt successfully, it is easy to die. Some young silkworms died before they survived. I'm very sad, but I'm glad that most of the silkworm babies have passed the dangerous period safely. After molting, the young silkworm seems to have grown up a little and its skin is getting whiter and whiter.
Looking at the growing silkworm baby, my heart is extremely happy.
Silkworm babies grow up gradually. When they were young, the small houses were obviously too small, so I replaced them with a spacious big carton, and they grew up gradually in this small box.
Silkworms grow up gradually, but because I am a resident student, the preservation of mulberry leaves has become a difficult problem. I have tried many methods, but mulberry leaves are always moldy or rotten. However, after repeated attempts, I finally found a good way. Just dry the mulberry leaves, put them in a plastic belt, then squeeze out the space in the bag and put them in a dry place for 5 to 6 days.
Now that my sericulture problem has finally been solved, I have set up my' professional sericulture household' with peace of mind.
Dear friends! Why not also experience the fun of sericulture? !
Zou Yuan, Grade Two, No.6 Middle School, Fenyi County, Xinyu City, Jiangxi Province
Silkworm rearing 450 words
There is a craze for sericulture in our school, and I also bought some from the stall to play. I see, what an ugly little silkworm! This little silkworm is only half the size of sesame and has fine hairs on it. An aunt saw through my mind and said to me, "In two days, the little silkworm will be fat in vain."
After two days, the original black silkworm turned yellow, with much less hair and fatter body. I sliced the mulberry leaves and fed them to the young silkworms bit by bit. A few days later, the little silkworm has become white and fat, with no hair, a big head and a big appetite. I must feed it more mulberry leaves. One day, I found that the silkworm that had not been idle for a moment became very quiet. Mulberry leaves, which were originally attractive to it, are also dying. Is it dead? I hurried to ask my mother. Mother said that silkworms have to shed their skin, and each time they shed their skin, they grow one year old. After listening to my mother's words, I immediately turned worry into happiness.
Under my careful feeding, the silkworm grows white and fat, and the mulberry leaves near my home are not enough for it to eat. Silkworm's mouth is also very cunning, don't want old and yellow mulberry leaves. I have to go further. When I find many leaves, I will pick more and put them in the refrigerator.
When the silkworm baby eats, Doudou's mouth is like a harvester, and it rustles. Some silkworms press on another silkworm, so that the silkworms below can't move: some bite a hole from the middle; Others keep mulberry leaves with their feet and eat them greedily. One of the young silkworms is very strange. It bit the stem on the leaf. Some holes of different sizes immediately appeared on the mulberry leaves.
As the saying goes, silkworms in spring will weave until they die, and candles will drain the wick every night. I hope the little silkworm will grow up soon, and let me see how it spins silk and forms cocoons.
Silkworm rearing 1 100 words
On the Mid-Autumn Festival, our family went back to their hometown for the Spring Festival. Seeing my uncle's little silkworm, fat in vain, about a centimeter long and cute, I had the idea of raising a little silkworm. Back in the city, holding a box of small silkworms and a bag of mulberry leaves.
When I got home, my father and I began to find a suitable house for the baby. The shoe box is too small and the milk box is too deep. Finally, we found a mooncake box with just the right space and size.
No sooner had the "housing" problem been solved than the food problem came again. Because the mulberry leaves are dry and big, they have just been taken out of the refrigerator. It's so cold that young silkworms can't eat at all. No way, we have to take the mulberry leaves out of the refrigerator in advance, cut them into strips and soak them in water in advance, so that the silkworm baby can eat them as "golden mouths" and "big mouths".
In the evening, I moved the silkworm babies to a warm bedroom and fell asleep with them. The next morning, I opened the box to visit the silkworm babies and found that all the silkworm babies had grown up a little. Many of them have grown by 0.5 cm, and some have grown by two or three millimeters. I saw that mulberry leaves have become a thing in the bellies of silkworm babies, and they have been eaten clean, leaving only a few veins. Silkworm babies looked up as if they were asking me for food. I quickly washed and dried the mulberry leaves and covered them evenly on the silkworm baby. Soon, there was a slight rustling sound, and the silkworm babies were enjoying themselves. Bite a small hole in the mulberry leaves first, and then eat the mulberry leaves round and round along the hole, just like the excavator is working constantly. Now I finally understand the true meaning of "chew".
A few days later, the silkworm baby grew up a lot, but the food intake was reduced. I had an ominous feeling in my heart, so I quickly called my uncle and asked them. It turns out that they have entered the "sleep" stage. They hold their heads high one by one and stay quietly in a fixed place, just like a group of sculptures. The back is inlaid with two pairs of black spherical patterns, which is very cute.
After about a day and a night, the silkworm babies "woke up" one after another. Their original fur could no longer support the growing trunk, so the silkworm babies began to shed their skin. With the peristalsis of the body, in a short time, the skin will fall off. At this point, the silkworm baby's body looks thicker and its length has increased by several millimeters.
In recent days, silkworm babies' food intake has suddenly increased, so their mother had to go to the wild to pick wild mulberry leaves for them to eat. After this feast, they ushered in the last stage of "life"-self-restraint.
My mother and I cut the cardboard into strips, cut the openings evenly, inserted them together, made them into "lattice clusters", and then carefully moved them into the "lattice clusters". At this time, the white and fat silkworm baby became thin and thin, and its body became golden yellow and transparent. Silkworm babies each choose a "land of geomantic omen" and start making cocoons. Their lower bodies are motionless, their heads swing back and forth, and the silk is pulled from side to side and from side to side. In a few strokes, the outline of the cocoon is "outlined", and the next step is encryption. After half a day, the cocoon has firmly enveloped the silkworm, but through the cocoon, you can still see a black shadow dangling constantly. At this time, people can't help but feel tragic and heartbroken.
"Spring silkworms will weave until they die, and candles will drain the wick every night." Silkworms "tie themselves in cocoons" and end their lives. How strong they are! How magnificent! .
Instructor: Jing Li
Chen Zichao, a freshman in Laiwu Experimental Middle School.
Silkworm rearing 500 words
I bought five super fat silkworms in the shop last Friday. They eat five big mulberry leaves a day.
I put them in a box as soon as I got home. I put a tender mulberry leaf in the middle of the box, and the silkworms somersaulted one by one, immediately climbed up the tender leaves and began to munch. I observed it for more than ten minutes, and the young leaves have been eaten by silkworms, leaving only leaf residue. I can't help admiring: "You eat too fast! God silkworm! "
After three days, I came to see the silkworm and found a silkworm sleeping. He slept soundly and didn't even know that the food was in his mouth. The other silkworm is exerting "tiger power" and "stepping around" on other silkworms. It still holds its head high, as if to say, "Please give me something to eat." At this time, I found that the mulberry leaves around it had finished eating. I quickly took out three oversized mulberry leaves from the refrigerator to let the cold air dissipate at room temperature. I'm afraid they have a fragile stomach. If they have diarrhea, I can't help it. When I put the mulberry leaves in the box, I found that the silkworm had closed its eyes and was unaware of the delicious food in its mouth! I am angry, too!
Three weeks later, I found that two silkworms began to spin silk. My mother and I immediately went to the community to find branches and tie them into trees. I caught them gently in the tree. The next day, I was surprised to find a white, oval and translucent cocoon hanging between branches. I jumped for joy. Mother said, "Be careful, don't scare the silkworm, or it will kill itself in it." I looked, and two silkworms kept spinning. I thought to myself: after they circle themselves, I must make toys with two balls of silk. Then, I drew a picture of raising silkworms: buy silkworms-eat silkworms-silkworms become fat and big-silkworms spin silk-silkworms wrap themselves up-silkworms lay eggs-and become moths.
Silkworm rearing not only brought me happiness, but also taught me knowledge. It's killing two birds with one stone! !
Silkworm rearing 350 words
I dreamed of sericulture, so my father brought more than 100 eggs last time, and I started my sericulture career. Three weeks ago, some little black bugs came out of their eggs. I prepared a mulberry leaf and put it in the paper box. A few little guys jumped on it like hungry wolves and ate it up. The next day, a dozen silkworms drilled their eggs. In this way, silkworms were born at an alarming rate. About a week later, a silkworm's head turned white. As soon as I saw it, I immediately understood that the silkworm began to shed its skin. The next day, most silkworms started their "first molting in history". After molting, all silkworms grow very fast and eat an amazing amount: only a dozen palm-sized leaves have skeletons left overnight! We have to pick more leaves, from five or six to a dozen, twenty or forty. I observed their eating patterns: eating from the side, eating like a sickle, eating half a slice in a few minutes, I have to admire.
Once when changing leaves, I found a yellow silkworm motionless, so I touched it with my hand, but it still remained motionless. I was cheated: "Are you hungry?" I want to throw it in the trash can, but I haven't thrown it yet. After all, I have feelings for it, and nothing happened the next day. On the third day, I was about to throw it. It seems to have moved. I put it back. After a long time, it twitched, trembled and came out. It's molting! Watching it work so hard, I really want to help it tear off that layer of skin.
Finally, I wish these lovely silkworms grow bigger and bigger.
Liao zhengyang
20 13.4.23
Silkworm rearing 450 words
After we finished the lesson of Silkworm Girl, the teacher gave us some silkworm babies for us to keep. I happily took them home, put them in a big paper box and put them on the table, and counted exactly eighteen. I made a hook at home, tied it to a long bamboo pole, took it to the mulberry tree in the yard, and hooked a lot of mulberry leaves. I took them home to eat a lot of mulberry leaves, wrapped the rest in a wet towel and put them in the refrigerator. I feed them a lot of food as soon as I get home every day and watch their growth.
There are six thin and small legs in front of the silkworm baby's stomach. There are no legs on the stomach, and there are some bigger legs behind the stomach. Silkworm baby just holds mulberry leaves with its front six legs, and its mouth is like a small excavator, digging the leaves into its mouth. Soon, a mulberry leaf was dug into a crescent-shaped pit by it. The little silkworm kept eating and then skinned it several times. In less than two weeks, it became as thick as my little finger. Three weeks later, some silkworm babies began to find a corner of the box and began to spin silk and cocoon. In the next few days, some silkworm babies cocoon one after another, until all the silkworm babies finally cocoon. Some of their cocoons are golden yellow, some are light yellow, some are light turquoise, and most of them are white.
After more than a week, the cocoon broke and the fat moth flew out. They are in no hurry to fly away. I heard that they will wait until they lay eggs.
Looking at these white fat moth girls, I feel very fulfilled and happy, and I have a deep understanding of the growth process of silkworms. This sericulture is so meaningful!
Silkworm rearing 500 words
At the end of May, my cousin brought me a dozen silkworm babies from the buried hill. Because I took the text "Silkworm Girl", I have long wanted to raise silkworms myself. When the baby silkworm first arrived, it was yellow and thin, only 3~4 cm long, and its head was scarlet. Although they are short, they can eat mulberry leaves enthusiastically. They first bite a tiny hole from the edge of mulberry leaves, then climb up the hole and eat it from left to right. In a short time, an intact mulberry leaf was bitten by them like an "underground tunnel".
One morning, I suddenly found a silkworm, broken and motionless. I cried sadly, "Dad, a silkworm broke its body and died!" " "Dad immediately came to have a look and said with a smile," This is their skin! "I see. I also smiled foolishly. A few days later, the silkworm baby peeled off its skin again, and its skin became whiter and smoother every time, becoming a veritable "white fat man".
At the beginning of June, "White Fatty" stopped eating mulberry leaves. The smallest silkworm spins silk first. I carefully moved it to another box. When I came home at night, I saw a white oval cocoon, about the size of a bird's egg. I'm glad that all the other silkworms have cocooned one after another.
I visit cocoons every day, hoping that they will have babies soon. After half a month, the moths came out of the cocoon and mated with each other. They put their butts together and parted after about a day. The next day, the potbellied mother moth laid eggs the size of sesame seeds. After laying eggs, it won't be long before the moth's life is over Mom and dad died before the poor child was born. I make up my mind that I will take care of them wholeheartedly so that they will not be sad because they have no parents.