My discovery composition

In ordinary daily life, everyone has been exposed to composition. According to the characteristics of writing proposition, composition can be divided into propositional composition and non-propositional composition. Still at a loss for composition? The following is my discovery composition, which is for your reference only and I hope it will help you.

My Discovery Composition 1 In recent weeks, the sky has been gray, and the rolling dark clouds are like rolling waves. Sometimes it rains heavily; Sometimes it ticks, jingles and rustles in the sky; Sometimes there is silent and thin Mao Mao rain in the sky. I carefully observed this natural phenomenon and found one of the mysteries: when it rains heavily, people's clothes will not get wet, and when it rains lightly, people's clothes will get wet. Why?

I asked my grandfather a question. Grandpa told me, "Because of the heavy rain in the sky, people will always be alert, hold an umbrella or run under the eaves to avoid the rain." When it rains in Mao Mao, people will never guard against it or let their guard down. Unconsciously, drizzle makes a mickle on clothes, and finally people's clothes will be wet by rain. It's like a reservoir. If it leaks a small hole, people won't repair it. After a long time, the gap will get bigger and bigger, which will eventually lead to floods. "Through this natural phenomenon, I understand that no matter how small things, shortcomings and problems are, they will always be worn away and become major events, major shortcomings and major problems.

Therefore, we should plan ahead and stop bad things when they first appear to prevent them from causing harm. If something bad happens, it's not too late to mend it.

My Discovery Composition 2 In science class, the science teacher asked us to put the seeds in wet toilet paper, and the seeds would germinate slowly.

I was skeptical after listening to it. How can seeds that should have grown in soil germinate in toilet paper? So, I want to verify it.

I found a transparent box and some seeds as soon as I got home. I put all the toilet paper in the box first, and then put the seeds on the edge of the box so that I can see the whole process of their germination. I spilled some water in the box, just enough to make the toilet paper have some humidity. Finally, I put the box in a warm and ventilated place.

So I began to wait for the result.

A few days passed, and the seed actually grew a "small tail". A few days later, "Little Tail" grew faster and green leaves grew in the seeds. Now two green leaves have grown in the seed shell, the empty seed shell has fallen off, and the seeds have finally grown into seedlings.

So, I checked Baidu and knew the reason. It turns out that when seeds germinate on paper, because the seeds absorb water from the paper and grow on their own nutrients, toilet paper plays a role in moisturizing and supporting.

This is a major discovery. Since then, mother has cultivated all her seedlings in this way.

On Saturday, in the scorching sun, my mother and I planted a pot of garlic at home.

I went to my mother's room the next morning and found that garlic still didn't germinate, as if it were sleeping soundly. I thought silently, "Are they thirsty?" So I took out a watering can from the cupboard and carefully watered the garlic one by one. Garlic is very happy after absorbing nectar!

One day, two days, three days ... finally one day, I found a small, light green bud on garlic, so cute! I took out a thin toothpick and carefully peeled off the soil next to the small garlic seedlings for fear of disturbing those white and tender garlic. I saw many snow-white roots coming out of the soil, just like grandpa's white beard.

Soon, I found that the garlic seedlings in Chaoyang grew taller and more energetic. They grew a few pale green leaves, which gradually became solid. The thin and long garlic leaves are full of vitality, and the green leaves stand upright, like brave soldiers. But those with their backs to the sun are different. Those with their backs to the sun grow slowly, and their leaves are short and thin, at most eight or nine centimeters. So I found and want to tell you a mysterious phenomenon-plants need sunlight for growth.

By observing the growth of this pot of garlic, I found the law of plant growth: their growth needs plenty of water, sunshine and care.

My Discovery Composition 4 Swallows fly to the south. We put on thick cotton-padded jackets and came to us with a smile in winter.

Snow in winter is colorful. Look, there is a fierce tiger catching a rabbit, and here is a colorful peacock opening its screen. Wow! What a beautiful snowflake! I really like snowflakes!

The scene of winter is like a dream. Some children are playing with snow in the middle of the scenic belt by the river! The children next door to my hometown are throwing snowballs at the wall. What about me! Just have fun with my dear sister, make a snowman and have a snowball fight!

Let's stop and extend a warm hand to welcome the snowflake. Snow is cold and cold, and it is fleeting after jumping into the palm of your hand. It is warmed into a stream of clear water, which slowly flows through your fingers and drips into the dry gap, nourishing the earth.

You are so irresistible that people fall in love with you. Winter is so short that people can't help but hate it, but winter is so selfless. Your snow has melted and turned into a small green bud that moistens spring with water!

Ah! In winter, I finally know your secret, and I love you forever.

I found a very interesting little experiment today, so I started to act quickly.

I saw that I first poured hot water into a big basin, then divided a basin of hot water into two parts with a towel as the center line, and then kept putting cold water into one part.

When I finished a subject in the experiment, I didn't know what the effect was now, so I silently thought to myself: Because the towel absorbs water, it can make the water in the basin absorb each other. If you add a lot of cold water to half of the water, the water on the other side is also warm. While thinking, I am doing a small experiment. When the water was added to the right amount, I thought: haha, it should be almost enough now! I touched the basin of water with this idea. When I touched it, I was dumbfounded at once-it turned out that the basin of water was half cold and half hot. That's weird. Why half cold water and half hot water? I thought about it for a long time, but I didn't. While I was thinking slowly, my mother suddenly let out a cry "The baby ate". I suddenly thought of the answer: the water absorption of the towel is relatively low. Unless the water in the towel is squeezed out and then let it absorb water, when its water absorption capacity is saturated, it can no longer absorb excess water. Isn't this the same as when we study at ordinary times? We have learned new knowledge, mastered it well and gradually merged with more knowledge, so that our knowledge will roll bigger and bigger like a snowball.

From this little experiment, I learned new knowledge.

My Discovery Composition 6 One night, I broke the cup I used to drink water at school.

The next morning, my mother reminded me to drink water at school. When I got to school, I took out my cup to drink water. When drinking water, I found that the cup wouldn't unscrew. Because it happened to be winter, the school put hot water, so I thought, after washing with hot water, the lid of the cup can be loosened a little, and then the lid will be opened as soon as it is twisted. After filling, the lid of the cup really magically opened. I thought to myself: it's great to finally drink water!

I want to check the reason online at night. After checking, I found that the principle of opening the lid is the same as that of canned food. In order to keep canned food fresh, vacuum packaging should be carried out to inhibit the proliferation of microorganisms. The bottle is close to vacuum, so that the atmospheric pressure in the bottle is tightly suppressed. After opening the gap, the air outside the bottle enters the bottle, so that the atmospheric pressure inside and outside the bottle is the same. When the pressure inside the cup is the same as the outside, it is opened.

So science is so interesting! I must study science well in the future. When I grow up, I want to be a famous and great scientist like Einstein.

My Discovery Composition 7 There are many mysteries in nature waiting for us to explore and discover. What did I find in it? Let me tell you something.

After dinner that day, my father said to me, "Let's play table tennis tonight." I replied happily, "Great." So, I took table tennis and a racket, and went to the activity site on the second floor of the mall with my father.

We had a good time, jumping for a while, and small table tennis shuttled back and forth between my father and me. We are sweating profusely. Suddenly I turned around one by one. Oh, no, I stepped on table tennis, and it sank. Dad said to me, "I can't play now." Just throw the ball away. " I said, "Don't throw it away, I can fix it."

I hurried home and put half a basin of boiling water on the ground. Then, I put the sinking ping-pong ball into the water, and then I stared at it with rapt attention. Five minutes, ten minutes, twenty minutes ... I saw my table tennis slowly swell up and finally gradually recover. I have a feeling of getting it back.

I looked up the information on the internet, and it turned out that it was all based on the principle that objects expand when heated and contract when cooled. Life is really learned everywhere!

My Discovery Composition 8 There are many kinds of plants in my hometown, including grapefruit tree, persimmon tree, camphor tree and maple forest ... What I am most curious about is the cactus planted in my home.

I have always wondered: cactus only has leaves when it blooms, unlike other plants, is the leaves wide or long? But sharp thorns? I can't figure out a series of questions.

Later, I went to see my father, who was reading a newspaper in the sun. I asked him why cactus has thorns and no leaves. Dad touched his head and thought for a moment and said, "I don't know, but we can check it with our mobile phone!" " "Dad picked up the phone and wrote" Why don't cactus have leaves and thorns "on it.

Experts say: cactus originally grows in desert soil in subtropical arid areas, and soil dryness is not conducive to plant growth. In order to survive, plants try their best to absorb water from the soil and reduce water consumption. The leaves of plants are important places to evaporate water. So the leaves also adapted to the environment and gradually evolved into thorns.

In the desert, the water of cactus can be preserved, and the fruit is highly sweet because of water evaporation, which is the survival and protection ability of cactus. It is also Darwin's theory of evolution, the survival of the fittest.

This summer, my parents and I traveled to Beihai. As soon as I got to the seaside, I ignored everything and went straight to the blue sea. Suddenly, my foot seems to have been pricked by something. I looked down and it turned out to be a small yellow-brown sand crab. I squatted down in surprise and looked carefully. However, it ran away as soon as it saw me, and I quickly caught up with it. That little sand crab runs so fast! It quickly found a small hole to drill in, covered it with a sand dumpling, and the little sand crab disappeared. I ran over and told my father about it. Father smiled and said, "Baby, let's catch a little sand crab!" " ! Let's see how it escaped, shall we? "I said," good! Very good! "

We waited quietly on the beach, and a few minutes passed, only to see movement on the sand surface of several square meters around, and several small sand balls moved to reveal a small hole. The little sand crab poked its head out to have a look and continued to climb outside. There was no danger. I reached for it at once, but the little smart card was faster, and I immediately hid back in the small hole and never came out.

How clever the little sand crab is! That's great. People can't catch them. If I have the chance next time, I want to catch small sand crabs again.

My Discovery Composition 10 This week, I have been reading the new science book with relish. Suddenly, a scientific experiment caught my attention. I saw in a science book that tea can be turned into ink. Is it really so amazing? I decided to do it myself. As the saying goes: hearing is empty, seeing is believing! So I prepared the materials: a cup, a pot of boiling water, a spoonful of tea and an essential screw.

The experiment began. I'll put the tea leaves in a cup and pour boiling water on it. When the color of tea turns khaki, I put the screw in the tea. I am waiting for the result of the exam in fear and trembling. A few days later, I couldn't wait to open the cup. "ah!" I can't help crying. The tea in the cup has turned into ink. I took out my newly bought pen, carefully dipped a few drops of "ink" and tried to write on white paper. Wow, "homemade ink" is exactly the same as real ink, and the written handwriting is clear and shiny.

Why does tea turn into ink when it encounters rust? I was puzzled, so I quickly opened the science book. It turns out that there is a substance called "tannic acid" in tea, which will react chemically when it encounters rust, so tea can also be turned into ink.

Students, the world is full of beautiful things everywhere. As long as we are willing to discover, practice and explore with our heart, we will certainly be able to create something and gain something!

My discovery composition 1 1 I think everyone is familiar with flies, right? This insect carries more than 34 million kinds of bacteria, which makes us infected with typhoid fever, dysentery, cholera and other diseases undetected, which also makes it notorious.

There are many flies in summer, especially in smelly places, but they can't be eaten up.

When I was in the countryside, I always caught flies and put them in bottles, just for fun. Suddenly, a flash of light flashed in my mind: what if I buried the fly in the soil? Will it suffocate flies?

My heart is not as good as my action. I immediately put the bottle in a lot of dust, and then I shook the bottle a few times for fear that the fly would not suffocate, and went out. After a long time, I came home and accidentally saw the bottle. "Now those flies should all be dead?" I said to myself.

I took the bottle outside and emptied the dust without any response. Just as I was about to leave, there was a sudden movement in the soil: the soil in several small holes sank bit by bit, and then some flies flew out of it. Oh, my god, this fly is unscathed, even the most fragile wings are safe and sound, which greatly surprised me.

The vitality of flies is so tenacious, then I know that there are no weak animals in nature, and they must be strong if they can survive, even small flies are no exception.

My discovery composition 12 bees only attack people when they are provoked. But I found that bees are not like this.

The whole family went out to play yesterday. Just as we were having fun, suddenly a brown bee flew in. After it saw us, I clearly heard the "buzzing" sound in its mouth! It seems to say, "Who are you to stand in the way of this king? You're afraid of Xiong Xin! Get out of my way, or I'll try my best! Did you hear that? "

After about a few minutes, the fierce bee saw that we had not moved away, and its voice became louder and louder, like a red alarm, like an order, wishing that bees all over the world would come here. We all got out of the way slowly. In principle, we shouldn't attack people. However, something unexpected happened! This bee bit dad's hand, and it hasn't passed 0. 1 sec, dad's hand is swollen with a big "steamed stuffed bun"! It hurts when you look at it. Dad grinned with pain, and the swollen "steamed buns" were red and painful. I looked back at the bees. It wagged its tail, hummed a tune and flew away triumphantly!

After this incident, I found that the personality of bees will change.

My Discovery Composition 13 There are many interesting secrets in nature, such as: Why do swallows fly? Why do mosquitoes bite? Why do ants move? Why did the cat fall from a height unscathed? As long as you carefully observe and think about these questions, you will certainly find the answers from nature.

One day, my father and I made an appointment to visit my grandmother's house. As soon as I arrived at grandma's house, I shouted, "grandma, here we come!" " "Say that finish, I seem to have a flying steam wheel under my feet and ran into my grandmother's house quickly.

I was attracted by grandma's little goldfish as soon as I entered the door. I went to the goldfish bowl and saw a goldfish. Its eyes are open, but it doesn't move. I immediately shouted, "grandma! Grandma! Come and see, will this goldfish die? " Grandma heard the word "death" and hurried over. Grandma took a look and said with a smile, "That's the goldfish sleeping!" " "I was confused by my grandmother's words and thought: How can fish sleep with their eyes open?

When I got home, I asked my father this question, but my father asked me to find the answer from the book, so I went into the sea of books to find "100,000 Why". Many things happen. It turns out that fish sleep with their eyes open, just like horses. In order to prevent the enemy from attacking, they sleep like this. Don't you find that fish swim very fast when they are in danger?

There are many revelations in nature, just waiting for you to discover them. As long as you observe them carefully, you will gain something. ...

My Discovery Composition 14 My New Discovery Today, I was playing on the lawn and stumbled upon the secret of ants moving.

I was playing on the lawn with my friends and found a group of ants moving, which caught our attention. At this time, a question came to my mind: why did they move? My curiosity drove me to follow them to a small slope. They dug holes in the soil. It took a long time to build a new home. After building a new house, the ants went in. At this moment, a drop of rain fell on my head. Ah, it's raining! We hurried home. At this time, I thought of another question: why does it rain when ants move? By consulting the encyclopedia, I learned that before the rain, because of the low air pressure, there was a lot of water vapor in the air and the weather was sultry. After ants feel it, they feel that their home is low and easy to be flooded. If you move your home to higher ground, you won't be flooded.

Oh, I see, so ants can feel the change of the weather. They are experts in weather forecast! Through this discovery, I understand a truth: we should explore nature more, because there are still many unknown things in nature waiting for us to explore. As long as we observe carefully, there will be more new discoveries.

My Discovery Composition 15 Grandpa invited Miss Chun in winter. When Miss Chun called, Uncle Lei played drums in the sky and woke everything up. After a spring rain, the campus became more beautiful.

Walking into the school gate, the campus is filled with the breath of spring. The grass sticks its head out of the soil. The willows have sprouted green shoots. My favorite is magnolia.

Whenever I come near Magnolia, I will smell a faint fragrance. Mulan grows on trees. Looking up, I saw purple and white magnolia covered with branches. Magnolia is pure and beautiful, like an angel guarding the magnolia tree, but I prefer the noble magnolia. Careful observation shows that each flower has a dark green receptacle and each flower has nine petals. Petals are long, like leaves. The outer layer is purple, but the inside is white. When I touched it with my hand, the petals were slippery, like silk, and I couldn't help being deeply attracted by magnolia.

Hey! Why does Magnolia only have flowers and no leaves? Other flowers grow leaves first and then bloom. I asked my teacher with questions, and the teacher told me: "The difference between magnolia and other flowers lies in flowers, because the flowers of magnolia can bloom below 10 degrees Celsius, but its leaves can grow above 20 degrees Celsius."

I observed it at school again and found that there are quite a few plants like magnolia! There are bauhinia, cherry blossoms and peach blossoms. I believe: as long as you put your heart into it, you will find that nature is really wonderful!