Fourth grade observation composition

In the usual study, work and life, when it comes to writing, everyone must be familiar with it. Writing is a verbal activity in which people express their feelings in written form. How to write a composition to avoid stepping on thunder? The following are eight observation compositions of grade four collected by me for reference only. Let's have a look.

Fourth grade observation composition 1 "microorganism", a word that was strange to me before, but in this science class, I got to know it again. Under the patient explanation of Teacher Qian, I consolidated my understanding of it!

Microorganisms are such interesting creatures. They are a large group of organisms, including bacteria, viruses, fungi, some small protozoa and microalgae. Although they are small, they are closely related to human life. Covers a variety of beneficial and harmful, covering health, food, medicine, industry and agriculture, environmental protection and other fields.

In this class, the teacher also showed us what kind of cells will appear on the onion skin under the microscope. Before that, let's learn what a microscope is! It is an instrument that produces magnified images of objects by physical methods. It was first invented in the late 6th century of/kloc-0, and has a history of more than 400 years. Now, it has become an extremely important scientific instrument, widely used in biology, chemistry, physics, metallurgy, brewing and other scientific research activities, and has made great and outstanding contributions to human development! Anyway, let's have a look at our onion skins! I saw the onion skin turn into a net under the microscope, neatly. We also saw green onions and garlic. ...

This science class is very important to me, because it really lets me know what microorganisms and cells are!

On the railing next to our classroom, looking down, there are all kinds of green plants downstairs, but the most attractive thing is the huge red flowers following the wooden balls.

Whenever class is over, I look from a distance and follow the leaves of the safflower of the wooden ball swaying in the sand in the rustling, as if waving to me and welcoming me back to school. There are many branches on his head, and its branches seem to have a hair that has never been cut.

Whenever we go to exercise or go to physical education class, I will look at the safflower tree as if it wants me to whisper every day. Today it's my turn to whisper to it, because today Teacher Shi took me to observe the trees, which happened to be my "old friend", so I had a chance to whisper to it. The first thing you see is its huge body, which is round. Its body color is first dark green, then green, then purple, then orange, and finally red. It is also close to the tall green osmanthus tree next to it. Presumably, you should also think that this safflower tree is very tall.

Then we went into the tree circle. First, we saw six tree trunks, as if we saw the antlers of three deer. Then we looked up and saw that the leaves were very dense, piled on top of each other in clusters, leaving no gap, which covered a burning sun tightly and made me feel cool. I wonder why the name of this tree is red Jim, but I can't find a flower. At this moment, Wu Shaopu shouted, "I found a flower." Our thoughts are already on this flower. We smell this flower for a while and look at that flower for a while, which is very novel. A man wanted to pick this flower, but under our persuasion, he didn't pick it at last.

This is the safflower tree, and this is my "old friend" who lives in the soil.

Fourth grade observation composition 3 xx xx xx XX Day Week X Weather: X

On the evening of March 20th, my parents and I went shopping in the supermarket. We were shopping and sending flowers to the supermarket. So, I personally chose a cute little asparagus pot. When I took it home, I found it a little dry, so I watered it.

This morning, I found that asparagus grew green and tender leaves. I was very happy and thought how tall asparagus would grow if it was kept like this.

Through this asparagus planting, I understand some truth. For example, whether you are working or studying, you should be serious and do your homework, and you can't be sloppy.

My sister who went to school in Beijing today came back and brought me a beautiful little white dove. Its feathers are as white as snow, with a red mouth, flesh-colored nose flowers and sentence-colored claws. Really, really beautiful!

The inlay on its head is dense and short, and it feels slippery. The feathers on its back are thick, solid and layered. The feathers on its belly are fluffy and soft, like cotton wool that has just been played, and it feels warm. The feathers on its wings and tail are long and hard, which can be opened like a folding fan.

Its head is inlaid with a pair of small black pearl eyes on both sides. That kind of movie-like eyelids often hang down quickly and lift up quickly, which is very interesting. The little white dove's mouth is long and short. Above the mouth is a raised flower with a large nose and two small holes on it, which are its nostrils. The paws of the little white dove are covered with a fine orange scale. There is a small white hook on each toe, and that is its nail.

The little white dove walked slowly on the table, her body stiff and her neck stiff. I really want to see the scene where the child just learned to walk. Really funny!

Everything in the world is multifaceted. Good things have a negative side, and bad things have a positive side.

I remember such a story. A little boy in grade one met such a question on the test paper: what is after the snow melts? Almost all the students think that snow melts into water, but the little boy thinks that it is spring after snow melts. The teacher made a mistake in correcting the test paper. After handing out the paper, the little boy was very wronged and told the teacher that it was really spring after the snow melted. The teacher thought the little boy was right and praised him in public.

It is also a problem, but it can be considered from many aspects. Just like the question of what is after melting, its answer can be water or spring water ... but everything that looks most disgusting in people's eyes has its positive side.

Maggots, a disgusting thing, have also contributed to the medical cause, saving an arm of foreign women.

There is a foreign women with this rare large abscess on her arm, which contains a lot of carrion, so that the abscess on her arm will never grow new meat. The doctors tried many methods, but it still didn't work. The doctor said that if it doesn't work, it may be amputated. Later, after many discussions, the doctors put forward a bold treatment plan. Is to plant the eggs bred by flies in the big abscess of her injured arm, let the eggs eat the stubborn carrion, and let her arm grow new meat. After the doctor's efforts, it really worked.

From this, we can see everything in many ways, and we can't always think that good things have no negative side and bad things have no positive side. Just like the maggot in the above story, although it is useless and disgusting at ordinary times, it saved an arm of foreign women. Therefore, we must look at things in many ways and understand things!

Early this morning, I vaguely heard my mother calling, "Jung, get up quickly, your little vegetables are sprouting!" " "

I got out of bed and ran to the balcony. "Wow, it really sprouted, and there are so many more!" "

I cried in surprise.

After breakfast, I remembered my "little life" again and went to observe it. I looked at it carefully, hoping to find something that suddenly occurred to me: the weather was fine a few days ago and it didn't germinate. Why do you want to sprout on this rainy day today? I immediately looked up the magical plant world and finally found the answer. It turns out that many plants like listening to music, such as small vegetables, and what they like most is the sound of running water. It's raining today, and there is running water. Small green vegetables and rape probably broke ground listening to this wonderful "music".

After observing the plant, I feel that its soil is a little yellow, so I need to water it. Just picking up the kettle and preparing to water it, my mother grabbed the kettle and said, "It's raining today, and the tide is very high. If you water it, it can't absorb it, so its roots will rot. " That was close!

Today I learned a new knowledge: in rainy and humid weather, you can't water plants too much.

At noon, we are sleepy, and so are the little vegetables. They closed two leaves, as if they closed their eyes, and its stem hung down, as if to say, "I'm sleepy, I'm going to sleep!" " "

With that, he bowed his head and went to bed.

I hope the small vegetables I grow can grow into strong big vegetables with light green stems, full hearts and big leaves, so that we can enjoy its delicious food!

My grandmother keeps a lovely kitten at home. The whole body is furry and round, like a big cotton ball, very cute. Its ears are triangular, there is a semicircular mouth under its eyes, and there are several beards beside it. Don't underestimate these beards, it is essential to measure the length or size of holes! It likes to play at home, jumping to the sky camera for a while, running to the room for a while and running to the flower bed for a while. I like it very much.

Once, when I was writing my homework, it jumped on the small desk where I wrote. I thought it was going to tear my notebook, so I quickly put it away. Unexpectedly, instead of tearing off my notebook, it ran around the room. I went to have a look, wow! It's the triangle I've been missing for years! I'm happy.-happy. In order to thank him, I babysat him all day. He is tired, so he can rest without making any noise. He is hungry. Give him food, and you can't leave until you are full. I'm exhausted after a busy day! I can't help it Who told me I owed it?

I love this lovely kitten!