Observe the composition of snails

In daily study, work or life, we often see the figure of composition. Composition is a narrative method that expresses a theme through words after people's ideological consideration and language organization. Do you know how to write a good composition? The following is my collection of snail observation essays, hoping to help everyone.

Observing Snails Composition 1 In science class, the teacher asked us to observe snails. As it happens, I also have a lot of curiosity about snails, so I will answer them one by one in my observation!

I caught some snails first. What are their shapes? I opened the roof of the snail's house. Its shell is spiral, some clockwise and some counterclockwise. Their colors are also varied. Ordinary snails are black and white jadeite snails are milky white. Snails have two pairs of tentacles, and the longer one should be the eyes, because there are two small balls on it. It seems that you are making a mistake to test it with your long tentacles before eating. As for the short one, it should be the nose.

So, what does snail like to eat? I put leaves, leaves, steamed bread and so on. In front of them. They were probably very hungry and found their favorite food to eat, but they all chose leaves and ate a lot. After a while, they ate a big leaf. Snails love to eat leaves!

Finally, I want to know where the snail lives. So, I continued to observe. Once, I accidentally put the snail in a place where the sun was particularly strong. When I come to see it again, alas! A snail was dying, so I quickly put it back under the big tree in the garden, and the snail finally "resurrected". It can be concluded that snails like to live in dark and humid places.

In the process of observing snails, I not only gained knowledge, but also learned to observe carefully and think diligently, so that we may find many small mysteries in ordinary food!

When I went to school to exercise, I passed by the drinking water area and found a small black spot moving on the water table next to me. A closer look turned out to be a small snail.

The small snail carries a big shell, its body is soft, and there are two pairs of slender tentacles, which makes me curious. After observation, he has four eyes on his tentacles. The teacher told us that one pair is fake and the other is real. There are many kinds of snails in nature, big and small, and the biggest one is as big as a fist; As small as sesame. Some shells are like small nails, some shells are like small whirlpools, and some shells are like mini tornadoes.

My snail is lazy. It sleeps for days except eating and drinking Lazarus. When I put it in the water, it unfolded its little body.

Snails like eating tender vegetables very much. It started eating leaves in the middle and ate a leaf in the blink of an eye. Snails are particularly picky about food, eating only leaves and not stems. But I have also heard that some snails eat eggshells to supplement calcium.

There are many interesting things to observe in the world, and snails are just one of them, such as "Why do cicadas bark", "Where do longicorn live", "Which spiders are poisonous", "Where are the fangs of spiders" and so on. ...

Observing Snail Composition 3 Once in a science class, the science teacher asked us to catch snails to observe. After class, I ran to the grass next to the classroom to catch snails.

I found three small snails in a dark and damp corner. After observation, I found that this little snail carries a beautiful spiral house on its back and has two pairs of thin tentacles on its head. After consulting the information, I found the function of the antenna. A pair of eyes that grow on the top of the head and have high myopia on the top of the head can only feel light or darkness. A pair of them are close to the ground and abdomen, which can sense obstacles and also play the role of smell.

When the snail climbs, it falls together. When it rises, it looks like a small arch bridge. It looks like a straight pencil when it falls. Its slender tentacles sometimes swing back and forth and sometimes touch the ground, as if to detect whether there is danger around it. I tried to gently touch its tentacles with a small stick, and it immediately shrank into its shell in panic and then poked its head out. How cute!

When I got home, I brought them some bread crumbs. I am curious. Will they eat? I waited quietly and found that they were not interested at all and were too lazy to move. I tried to bring some rice and cabbage leaves. After waiting for a long time, a snail crawled to the cabbage leaves. Soon, small holes of different sizes appeared on the leaves of Chinese cabbage. Hi! It turns out that they like to eat cabbage leaves. I thought I would eat whatever I gave them, little guy with a mouth!

The scientific experiment about snails is really interesting!

Observing Snails There are several snails at home. I'm going to observe them.

Its head sticks out, and its four tentacles sway like four black "antennas", two of which have round black eyes. There are some small figures on my body, which are skin color and seem to be words. The whole snail seems to be a living "letter". And words are the content of the letter. The shell is like a maze, you have to go through it to get the letter. When the snail found the leaf, it tried to climb over it. Mucus will stay where it crawls, because mucus can speed up its crawling, not just ten centimeters a day. When crawling on the glass, you can see that the edge of the snail's abdomen is somewhat curved.

Snails are used to living in loose, damp and dark environments, such as cracks in stones and soil ... They like to eat fresh cabbage leaves, delicious lettuce leaves and even crispy bread. However, if you give it chocolate, the snail will definitely say something that is too quiet to hear: "I won't eat disgusting chocolate if I die!" " "How picky!

Once, I played hide-and-seek with snails. I'll hide in my mother's closet first, and then count: one, two, three. After a long time, I got a little impatient, so I came out to look for snails. Under the bed, behind the door, on the wall … but there is nothing. Suddenly, an antenna stuck out of the snail's shell, as if to say, "You can't beat me, there's nothing you can do!" " I was so angry that I threw the snail into the water. After a while, the snail struggled desperately because it didn't adapt to the environment in the water, as if to say, "Are you going to drown me? You are so wicked. "

Snails are pests to farmers and treasures to scientists. It is said that snail droppings are still high in protein!

Observing Snail Composition 5 One weekend just after it rained, I went to catch snails. According to the teacher, snails are often in dark and humid places. I went to the garden and found a flowerpot. I looked left and right, then opened the leaves, but I couldn't find the snail. I thought, where did the naughty snail hide? Oh, gloomy. Wet. The flowers are not black at all, so there must be no snails here. I looked under the flowerpot, yes. Snails. I caught it, put it in a box, and then put some leaves on the snail.

Its most obvious is the shell. The shell rolled like a lollipop. He is very shy. If there is any movement outside, he won't come out. After waiting for a long time, there seemed to be no sound outside, and then he quietly poked his head out, as if to say, there is no one outside, so I can come out. It stretches its body, its tentacles stand up and turn around, like an antenna of a radio, listening to the news from afar. It began to crawl, wriggle and creep slowly.

This snail is really stubborn. I touched it with a pencil. It didn't take it back like other snails. Took half and left half outside. The snail came out again. I touched it again. It came back and came out again. How stubborn. There is a snail with a tail, but we can't find it. I put the sleeping little snail on the crawling big snail. The little snail is really lazy. He sleeps on the big snail and doesn't care about the big snail. The big snail doesn't know that the little snail is on its back. The big snail must be thinking: Why did it suddenly get heavier? It feels strange.

This snail is really cute. After observing this snail, I decided to let it go, just like humans. People must be free and happy. Snails, like humans, have freedom. Keep it in a box, just like you keep me in a room, so I want to let the snail go. In this way, I am very happy, and the snail will be very happy.

One day, just after the rain, I was walking home when I suddenly saw two snails on the lawn, one big and one small. Out of curiosity, I took them home carefully. I observed two snails and found that the big snail is not like what we thought, but more like a big conch. Small snails are a bit like. It has two pairs of antennae, one long and the other short. Its eyes are on those long antennae, and its shell is round.

I often stare at snails these days. I found that snails are lazy, and they are big snails. They often lie motionless in the box and hang upside down on the box cover. Once, I observed it for more than half an hour, but the big snail just refused to move. I was really anxious, so I put two vegetable leaves in to attract them. But they just ignored me! The snail's shell is very thin, its body moves slowly, and its tentacles can stretch. With a gentle touch of the hand, the little snail immediately shrank into its shell. I stared at the little snail to see if it ate the leaves I prepared for them. I found that they touched the leaves and left. I'm angry and disappointed. After a while, I couldn't help looking at the little snail. I saw a big hole missing from the leaf. Soon, Ye Quan's cabbages were eaten up by two snails.

Snails usually come out at night and like dark and humid environment. It tends to slowly climb to the leaves of Chinese cabbage, reach out its tentacles, taste the taste gently first, and then slowly start a good meal.

Observing snail composition 7 The rain has stopped. My mother and I went shopping. On the way, we saw several small snails crossing the road slowly.

I found that the snail has a hard shell with right and left hands on both sides. It is said that the snail's shell is its own home, and when it is in danger, it will shrink into the shell and spit out mucus. They also have soft bodies, which can help them walk and quickly shrink into their shells.

In science class, the science teacher told us that a snail has two pairs of tentacles. The big one can take it to find food, and the small one can decide whether it is edible or not. There is a mouth in the head and abdomen, and there is a tongue in the mouth. I also know that snails eat leaves.

While I was watching carefully, my mother asked me to take it shopping, and I didn't want to go! Finally, I was reluctant to leave. When I passed that road again, I found it was gone! However, I found several long marks on the road. It turns out that this is snail mucus. Following the mucus, we found several small snails. I picked a leaf and put it in front of a small snail. The little snail climbed up and bit a small hole, so I put it on the rough road. It crawled for a while and I picked it up. It's intact! I observed carefully and found that there was mucus on the way the snail climbed. It turns out that snail mucus can reduce friction. So snails can't get hurt when they climb anywhere.

I like snails, and I prefer observation!

Observing Snail Composition 8 In order to have a science class, we have three lovely little snails at home and take them out to play with their "home" whenever we have time. Today I'm going to test my three little snails, so I took a ruler and connected my old pencil box with the snail's "home".

I am going to invite "athletes" to play, so I put my favorite snail on the "starting point" of the ruler and touched its tentacles with my hand and said, "Little snail, you must work hard for me." Its tentacles shrank and turned around, as if to say, "Don't worry, master, I will win." Then, I put the other two snails in the past and said to them, "Come on." At the same time, I lit their tails and they really got up slowly. Look, the snail's body crawls with stickiness, and I find a winding "line" behind them. Suddenly, a small snail fell, but it doesn't matter. I put it on the ruler again. I didn't expect it to stick a ruler with its specialty-sticky meat. I simply stopped climbing and stood still, no matter how I clicked, touched or pushed. It just doesn't move. I am very helpless. My favorite snail was accidentally touched by me, like a shy little girl shrinking in, and I moved again. It really stretched out its tentacles carefully with small black eyes, looked around and felt that there was no danger around, so it slowly stuck its head out and continued to crawl. Only the other one climbed to the finish line as usual.

There are many interesting things in our life, so we should observe carefully and think more.

Observe the composition of snails. 9 Snails crawl on their stomachs and feet, and the speed is very slow. Test the crawling speed of snails on different materials, and prepare glass, tiles and cardboard. First, put the feeding snail on the glass, put a square next to it, and tie a small piece of apple with thin thread to lure it. The food is about 5-6 cm within the snail's range. After a while, the snail came out of its shell and found that the apple was crawling towards it, gently pulling the thin line parallel to the edge of the ruler, so that the snail could only see and smell but could not eat the apple. The hungry snail had to climb along the ruler to eat the apple. Taking the tail of the snail's belly as the starting point and the end point, after 60 seconds, the crawling distance from the ruler is 12 cm, the calculated crawling speed is 0.2 cm/s, and the crawling speeds are 0.10.5 cm/s and 0. 1 cm/s respectively. Snails crawl at different speeds on different materials, and glass climbs faster than cardboard. The reason is that the glass is smooth and the resistance is small. Observation conclusion: Snails crawl really slowly.

Abdominal foot movement and uniform crawling

Observing the three test experiments, although the speed is different, it is found that the speed remains the same during each crawling process. The crawling speed of snails is directly related to the movement of gastropods. Observing the gastropod of the crawling snail from the back of the glass, we can see that the gastropod muscles contract from back to front, and at the same time stick to the surface of the object to prevent it from sliding backwards. When contracted to the front, the ventral foot is released and the snail can fully extend and slide forward. Abdominal foot muscles contract in waves. After observing for a long time, it was found that the contraction frequency of wave type was constant, and the snail crawled on its arm, and its movement rhythm was consistent, so as to judge that the movement of abdomen and feet was uniform. The results of reasoning test show that snails do crawl at a constant speed.

Observing Snail Composition 10 One morning, it was raining in Mao Mao. Come to my balcony to see if the Chinese cabbage planted a few days ago has sprouted. I came to the balcony and saw that the Chinese cabbage had grown green leaves. I was so happy that when I looked carefully, I suddenly saw several snails crawling around on the leaves. I was curious, so I took some small snails and put them on the glass table to observe them carefully.

I found a long line where the snail climbed. It has two pairs of antennae on its head, one long and the other short. But where are its eyes and nose? I ran to ask my father with a series of question marks. Father smiled and said, "You want to know the secret of snails, why don't you experience it yourself?" So I decided to find the answers to these questions myself.

I found some leaves and put snails on them. The little snail moved. It slowly climbed to the other end of the leaf, leaving a long wet liquid. I checked the information on the internet and found that these liquids are sticky substances discharged by snails, which are used to protect the abdomen and feet and help snails crawl. "Where are its eyes and nose?" I looked it up on the Internet again, and it turned out that a pair of big tentacles I saw were its eyes and a pair of small tentacles were the nose of a snail.

You see, a small snail has such a big secret, so there are more secrets in the world. Only from this observation, I also learned a truth, as long as we pay attention to observation and be good at thinking, we will find something.

Observing snail composition 1 1 Today, my father and I bought two snails at the flower and bird market.

Those two snails have two pairs of tentacles, one long and the other short. There are a pair of small eyes on the long tentacles. Their color is white, and they have spiral shells. They are beautiful!

After a day, I came to the balcony to observe the snail carefully, hey! How did the snail's head get into the shell? I remember what the teacher said. If you put some water, its head will not only stick out, but also climb on the glass! So I put some water in the cage and it climbed up as the teacher said. They put two pairs of tentacles out of the cage as if eager to go out. I put them in the pool. Suddenly, I found some large and small holes under the snail shell stretching and contracting. What is that? I thought of what the teacher said again, that stretching and contracting is its stomata, which is where they breathe. After a while, they all climbed to a dark and humid place. I thought, "Are they afraid of the sun?" ? I closed the curtains and they immediately returned to their positions. Snails are afraid of the sun! At night, I saw them all asleep in their shells, so I slept, too.

This observation of snails has made me know more about snails and made me like snails more!

Observing Snails Composition 12 In this semester's science class, science asked us to observe snails, so my father bought me two white jade snails with conch shells on their backs.

My white jade snail has two brown conchs, and there is a large white body at the bottom of the shell, which adds a bit of beauty to the shell. Their eyes are very small and grow on those thin tentacles, which can't be seen without careful observation. The body is big and soft.

They are always sleeping at ordinary times. One morning, when I went to observe them, one of them was sleeping under the leaves of Chinese cabbage, and the other was lying on the "throne" made of Chinese cabbage leaves. I came home from school, and they kept this posture.

Once, my white jade snail was going to piss me off.

That time, after I changed the house for the white jade snail, I wanted to see how my white jade snail fell in love. So, I deliberately let them face to face, I thought they would climb together. As a result, after I finished eating, I immediately ran to its "door" and saw that moment. I'm angry that they actually ... compete for speed. Snails are not the slowest in the animal world. Faster than speed. It's like sending an umbrella after the rain-there's no need.

Oh, why did my snail climb the wall of the box again? Look, I can't catch you. Huh? Why are snails so hard to catch? So, with a questioning attitude, I went to consult my father. Dad said: "The snail's body is actually like a sucker. You just need to brush the snail's body with a brush and you can take it off. " I tried, ah! The snail was caught. Ah! Ah! With this method, I won't worry about not catching snails.

Snail is really a magical little animal. It's slow, but I still like it.

Observing snail composition 13 Saturday morning, I went to the park to enjoy flowers, and suddenly I saw a small snail eating grass leaves on the grass beside the flower pond. I was very surprised. I remembered what the teacher said about observing small animals and carefully took some small snails home.

Count at home, ha-10 little snail! They are all beautiful, white, black and gray. Their antennae are different in length, with a long back and a short front. Eyes are really small, like small grains of rice. The small mouth is under the antenna, like a very thin slit. Where are the teeth? Mom said that snails have the most teeth in the world, with 25,600! Of course, teeth are small and invisible to the naked eye, but they are so powerful that even if a snail is put into a cardboard box that is harder than its body, it can bite through the cardboard and climb out.

Then I found the snail's shell is the most attractive. There are circles on the hard shell, like a top, which is very beautiful. But I couldn't help touching their tentacles gently, and they immediately retracted their bodies and heads into their shells. I found it interesting that there was a trace like water in the place where the little snail climbed, which was sticky to the touch. What's going on here? I made "100,000 Why". It turns out that there are many small "feet" under the snail's stomach, which are the belly feet of the snail. Gastropods secrete mucus, like lubricating oil, which makes it easier for snails to crawl. Snails are small, but they have their own unique skills!

By observing the little snail, I understand a truth. As long as I observe and study carefully, I will increase my knowledge. In the future, I will continue to work hard.

On Sunday, my father and I went downstairs to catch snails. We searched and searched. Finally, I found two snails in the grass. I picked it up carefully and put it in a dry mineral water bottle. When I got home, I took some leaves and put them in a mineral water bottle. Snails eat with relish.

The snail crawled slowly with its shell on its back. It has two pairs of antennae on its head. It has a pair of long tentacles on it. There are two points on the long tentacles, which are its eyes. When a snail crawls, two pairs of tentacles always stick out, touch whether there are obstacles ahead, and then crawl forward step by step after confirming safety, and its "small house" also moves forward.

The snail climbed higher and higher, almost reaching the bottle mouth of mineral water. I thought he would run away. When I slapped the bottle with my hand, the snail fell to the bottom of the bottle and immediately shrank back into the shell. As soon as it was frightened, it hid in the "small house". How alert you are!

I poured out two snails and put them on a cabbage leaf. They crawled around. Suddenly, their antennae met, but they were not afraid at all. The big snail climbed onto the small snail's back. They seem to be playing with each other!

I put one of the snails on a piece of paper, and the paper got wet where the snails climbed. I asked my mother, "Mom, why does the paper get wet where snails climb?" Mother said, "That's because snails secrete mucus when they climb over, so snails are easy to attach to objects." "Oh, I see!"

The little snail is so cute!

Observing Snail Composition 15 My grandfather and I finished dinner and went out to look for snails in the cool autumn wind! Grandpa said, "Snails prefer wet places to light. They like to eat vegetable leaves. " So, we came to the vegetable field with a purpose. In a short time, grandpa was the first to find the snail, and I jumped three feet high with joy! Look carefully, there are several snails lying quietly on the leaves! I put them in a transparent box and took them home.

Snails look timid. They are all hidden in the shell. After a while, I saw a bold snail, slowly, slowly sticking out its little head from its shell, and then, two thin and flexible tentacles on its head stretched out. Perhaps, it felt safe, so this brave little snail began to crawl along the wall of the box. Soon, other small snails in the box began to crawl slowly, sticking out their tentacles as they climbed, as if they were familiar with the new environment. I found that as long as they climbed over, there would be mucus and glitter. After my mother helped me Baidu, I knew that they needed mucus to protect their bodies, help them exercise and kill bacteria on their bodies. It was very effective!

The little snail has been crawling. I guess they must be hungry, so they put a small leaf in the box. Sure enough, they had a good time. Some people may ask, "Does a snail have teeth?" Yes, the snail has no teeth, but it has a "toothed tongue" in its mouth, which acts like our teeth and can help it digest!

The little snail stretched out its tentacles again. I read in a snail's diary, "as long as they put their tentacles on their heads for a long time, tomorrow will be sunny!" " Wow, a snail's tentacles can actually measure the weather. I am looking forward to tomorrow!