The day is coming to an end. Has anything or someone touched us during this day? It's time to write a diary carefully. So do you really know how to keep a diary? The following is my observation diary of silkworm, welcome to share. Silkworm observation diary 1
My baby silkworm is very fat. When I came back from my grandmother's trip, my mother and I were surprised to find that the silkworm baby suddenly grew up a lot and ate an amazing amount of mulberry leaves, and could eat a lot of mulberry leaves a day. It seems that everyone who grows up is hungry!
Last night, I was pleasantly surprised to find that a shortest and thinnest silkworm baby actually started spinning cocoons. Later, I remembered that when I went to see them at noon yesterday, this silkworm baby just held its head high and looked east and west. It turned out that it was looking for a cocoon-making place. Silkworm baby is so clever. It found the corner of the box and began to spin silk, because there is a place to climb. I asked my grandmother to come and see, and she tore a small piece of rice paper and leaned against it. I asked my grandmother what it was for, and she told me that it could form a triangular support between the rice paper and the corner of the box. She also said that it would be nice if there were straw.
As soon as I got up this morning, I couldn't wait to see the silkworm baby. I saw that the cocoon had formed an oval ball, and I found another silkworm baby making cocoons beside it. Yesterday, I also put a piece of rice paper in another corner of the box according to my grandmother, and the silkworm baby also used it. I was so happy. I saw the silk spit by the silkworm baby shining in the light.
I wonder what the cocoon of the silkworm baby will look like tomorrow? I'm looking forward to it! Observation Diary of Silkworms 2
Neighbors sent two silkworms, one of which has spun silk and formed cocoons, and it is white and oval, which is the thickness of an adult's thumb. The other one showed signs of cocoon formation the next morning, and was busy looking for a suitable place. Finally, it was safely cocooned in the "house" built by her daughter. It took a day and a night from searching to cocoon formation. Before going to bed at night, her daughter also observed the activities of silkworms in the cocoon in the light. She kept spinning silk and surrounded herself more tightly, so that she could "sleep" safely in the "home". A few days later, Next to it was its shed skin, which gently touched the pupa's body, and it twisted its abdomen. Its color was no longer milky white, but yellowish brown, with a deep back and a shallow abdomen. We quickly put it back, thinking that it would "save energy" when it became a moth. Unexpectedly, after about a week, it broke out of its cocoon by itself. It was really a natural skill, with milky white body, wings and abdomen.
I have always regretted that my daughter didn't observe the process of feeding silkworms. Unexpectedly, my friend sent 11 young silkworms on July 3rd, and my daughter was very excited at once. She picked mulberry leaves, washed and dried them, fed them, and observed the growth and changes of silkworms. I also helped her to set up an observation file so that she could record and observe them better and cultivate her interest and methods in research.
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if you feel that reading books makes you unhappy, then complain. Silkworm observation diary 3
On Friday, the teacher asked us to write a weekly diary of My Silkworm Baby. I thought: There are so many silkworm babies in my family that it must be handy to write.
a month ago, I took out the silkworm eggs I had left at home and wrapped them in cotton. A few days later, a black spot appeared on the silkworm eggs. A few days later, the baby silkworm came out. It was an ant-like thing. I thought it was rubbish and was about to throw it away. My mother said loudly, "Don't throw it away, it's an ant silkworm!" " "What? Ant silkworm? " I don't understand. Mother said, "This is what the silkworm baby just came out. We call it the ant silkworm."
After another week, Baby Silkworm has grown up a lot. His body is soft, his head is black, and he is smaller than his body. His mouth is a small hole and he has two front teeth. It chews mulberry leaves. There is also a small hole in the middle of the head for spinning. It has eight pairs of feet, and it is very interesting to walk arch by arch. One day, I saw the silkworm baby staying in the corner, motionless. I thought it was going to die, so I quickly called my mother and said, "Mom, the silkworm baby is not moving!" " Mom smiled and said, "it's not dead, it's peeling!" " "Really?" I'm a little incredulous. Mom said, "If you don't believe me, you can see if it will come out." After waiting for several hours, I found a hole in the shell of the silkworm baby, and the silkworm baby climbed out of it. "Come out! Come out! " I cried happily.
A few days later, the baby silkworm shed its skin again, and now it has turned white all over. It's really some bombshell-loving silkworm babies, who have to change clothes occasionally like us girls!
I really hope that the silkworm baby will grow up carefree under my care! Silkworm observation diary 4
"and the silk-worms of spring will weave until they die", do you know what silkworm's life is like? Let me tell you something, okay?
In the summer vacation of 2xx, my mother took me to my aunt's house, and I was driving her away to raise silkworms. The silkworm eggs on the silkworm paper began to hatch. Many little silkworms, only about a millimeter long, were born. They were black in color and wriggled in paper boxes. Uncle sent the baby silkworms to the oak tree on the mountain for stocking. After a week or so, the young silkworms gradually grew to about one centimeter. At this time, their food intake increased and they kept eating leaves all day. After about two weeks, the little silkworm grew into a big silkworm three or four centimeters long, with all the leaves of oak trees eaten where the body climbed, and only the rustling sound was heard. At this time, the silkworm was already an adult. After about forty days, they began to cocoon one after another. At this time, the silkworms stopped eating leaves, found a suitable place to start spinning, surrounded themselves with the spit silk layer by layer, and gradually formed a film. After about a day of hard work, they finally formed a cocoon! This National Day holiday, I came to my aunt's house again, and I saw baskets of cocoons picked back.
according to my aunt, if the temperature is right, after a while, the silkworm moth will come out of the cocoon again, and the silkworm moth will lay eggs smaller than rice grains. The silkworm will have to lay eggs-hatch silkworms-change into pupae-turn into moths throughout its life, and will complete the cycle of a new generation. This is the life history of silkworms. Isn't the life of a silkworm interesting? Silkworm observation diary 5
It's fine on Friday
I haven't seen the silkworm baby for more than a week. Today, I will go to see the silkworm baby as soon as I get home. The silkworm baby has grown up a lot, and its body is white and yellow. I measured my longest one "up". Wow, it's 3 cm. The longest one is not only long, but also thicker and bigger. There are many wrinkles on the head, just like a pair of wrinkled faces of an old woman. There are about ten sections on the body, and there is a small black spot under each section. According to my mother, it is the valve of silkworm baby.
It's cloudy on Saturday
I discovered the secret of the silkworm baby. I caught all the silkworms because I wanted to change the mulberry leaves. When I caught the last one, I found that there was silk on the leaf where it was, so I didn't touch it, thinking that it was spinning and cocooning, but after waiting for two or three hours, it still didn't cocoon. I was surprised, so I went to observe it and found that it was not spit out from my mouth, but from its feet.
It's cloudy on Sunday
Today, one of my silkworm babies didn't eat or drink, and soon stopped moving. I thought it was dead, and I was sad and surprised. The silkworm baby was fine yesterday. Why did it die today? Just when I was full of doubts, the silkworm baby began to squirm, and there was a yellow thing on its tail. Take a closer look. Oh, it turns out that it is peeling, not dead. Now I just spread my frowning brows. Observation Diary of Silkworm 6
Thursday, October 3th
The silkworm my mother bought for me suddenly turned into a fourth-instar silkworm. My mother said, "Silkworm is about to molt, and after molting, it will become a fifth-instar silkworm". I think: Silkworms are not dead without their skins. Mom must be playing with me!
At noon, I opened the silkworm box and prepared to change the mulberry leaves. However, I was stunned by the scene in front of me. A silkworm was constantly squirming, and there was a …… skin behind it? Is this-molting? I muttered unhappily, "Silkworm skin is really thick!" "
5th instar silkworm Friday, October 31st
After the 4th instar silkworm changed into 5th instar silkworm, it not only became much bigger, but also ate a lot more. Those who often compete with the four-year-old silkworm for food have to bang for a while almost every day, and finally the four-year-old silkworm is "willing to lose." I wonder: will the fifth-instar silkworm become the sixth-instar silkworm?
Quick knot "scissors" Saturday, October 1st
Today, when I opened the silkworm box, I always felt something was missing. Come to think of it, why didn't planes bomb cannons today-there was a war? I looked at the five-year-old silkworm basking in the sun leisurely and becoming transparent! Huh? Become ... transparent? "Ah! Silkworms have become pearls! " Mother said, "No, it's that silkworms are about to bear cocoons, and that's how silkworms bear cocoons!" " "Is it scissors? Great, there is no shortage of scissors! " I said cheerfully. "Oh, cocoons are silkworms' clothes and houses, not scissors!"
Silkworm, make cocoons quickly! I really want to see your cotton-padded clothes!
Cocoons on Sunday, October 2nd
This morning, I was dreaming a beautiful dream, and I was suddenly woken up. "Your silkworm has cocoons, get up and have a look!" My mother shouted loudly, and I was wide awake at once. I picked up the silkworm box and looked at it. Sure enough, there was a round and yellow cocoon in the corner of the silkworm box.
"oh yeah! I have cocoons, too! " Observation Diary of Silkworm 7
Before and after Tomb-Sweeping Day. Grandma took the silkworm eggs that had been planted in Chen Feng for a whole year out of the cupboard and put them on the balcony.
Silkworm eggs are small and round, like milky white millet. They are scattered in every corner of the box sporadically, and some cling to the wall of the box, sticking firmly, no matter how hard you dig it.
after a few days, green leaves grew on mulberry branches, and silkworms only ate mulberry leaves.
At the same time, the little silkworms also showed their little heads from the fish-like shell. The little silkworm is small and dark, and it is densely packed in a box, and it keeps crawling. The young silkworm is about 2 mm long. It's about half a fingernail long. Mulberry leaves in early spring are extremely difficult to find, but they are small but can be eaten very much. The mulberry leaves that have been painstakingly found are eaten up after three or two times.
Silkworms shed their skin once or twice a week, and then they grow up. Their colors are white, gray and black, and they crawl freely in the silkworm box. Holding the silkworm in the palm of your hand is cool and sticky. There is a small sucker under the silkworm's foot, so grab my hand at once. Mulberry leaves gradually became more and more, and silkworm food became rich.
Silkworms grow fat after molting for four times, which shows that they are about to cocoon. Silkworms' bellies are full of silk, and their bellies are getting bigger. Put a few pieces of mulberry leaves, and they immediately ate like a hungry wolf, and ate up the leaves in a few minutes. The rustling sound of silkworms eating mulberry leaves is like rain hitting banana.
Some silkworms have begun to cocoon. I know that these silkworms will spin silk and cocoon, break the cocoon into moths, lay eggs and then scatter. Silkworm observation diary 8
(1)
Yesterday morning, our classmates' boxes of silkworm babies arrived at the station, and the students were ecstatic.
When I came home yesterday, my silkworm baby walked on the "tightrope" on the mulberry leaf pole, and it was as good as a professional actor.
The silkworm baby "Qingqing" is rolled together like a snake, which looks a little disgusting. "Xiao Jing" crawls around on mulberry leaves, busy as hell, and sometimes comes down to eat some delicious food (mulberry leaves).
The silkworm baby "Yuanyuan" is a greedy cat. It eats all day and has a bulging stomach, so it is called "Yuanyuan".
On this day, I did an experiment. Did silkworms hear?
In the evening, I asked my father to turn on "Qianqian Listening". I opened the silkworm box and played "That Night" on the loud stereo. Two or three silkworm babies looked up as if to say, "What are we listening to?"
Do silkworms really have hearing? I played it again, but the silkworms looked up at me and listened curiously ... What an anecdote!
after a series of investigations, I think silkworms have hearing. Believe it or not, do your own experiments.
I'll tell you a news. A silkworm (Qingqing) has lost its skin. It has a brand-new skin. It's so smooth!
(2)
My silkworm baby likes eating very much, and she can't stop talking, alas!
No, Yuanyuan is eating again. It rolled and crawled in front of the mulberry leaves, bent down and chewed the mulberry leaves. Look at the way it eats, its mouth moves slightly, and it eats in circles. It never bites half of it. Hey, it's really chewing slowly.
Seeing Yuanyuan eating, Qingqing was greedy. She lowered her head and began to eat mulberry leaves. It also ate round and round. I wonder why they all eat like this.
confused, I had to continue my investigation.
My guess is that, firstly, the silkworm's stomach is too small to chop up big mulberry leaves, and secondly, the silkworm's mouth is too small to hold it ...
I hope the investigation is successful. Silkworm observation diary 9
Today, when I came home from class, I saw an old man sitting at the school gate with a few white bugs in his hand. I went over and asked, "What kind of bug is this?" The old man told me, "This is a silkworm, not a bug." I asked, "How many pieces can I buy for one dollar?" I asked because I had only one dollar in my pocket at that time. The old man said, "Look at your sincerity, I'll give you eight." I thought, "fortunately, a dollar can buy silkworms!" " Put it in a box and throw more than a dozen mulberry leaves in it.
The next day, I saw Baby Silkworm look up at me as if to say, "Master, I'm hungry." I quickly put some mulberry leaves for them to eat. When they were eating, I watched carefully and finally found a purple line on the back of the white fat silkworm baby. I thought, "This should be the blood vessel of the silkworm baby!" "
after two weeks, my baby silkworm will cocoon from today! The day before yesterday, when I saw that the silkworm baby didn't eat or drink, my father told me, "Because the silkworm baby is going to cocoon!" " So, dad went out and pulled out some weeds and tied them into small handfuls to support them next to the silkworm baby. After getting up yesterday, I found that the silkworm baby vomited a lot of silk. I woke up this morning and saw eight cocoons already quietly in the box.
the long-awaited day has finally arrived! Early in the morning, my mother told me that silkworm moths "flew" out. Moreover, all eight silkworm moths have come out. Soon, the silkworm moth
began to lay eggs! Its eggs are light yellow and small, smaller than sesame.
I finally know the truth of "and the silk-worms of spring will weave until they die"! Silkworm observation diary 1
Three weeks ago, my mother told me.