2. Onions are nutritious and spicy. It can be secreted from stomach, intestine and digestive gland, stimulate appetite and promote digestion. Onion contains no fat, and its essential oil contains a mixture of sulfur compounds, which can lower cholesterol and can be used to treat dyspepsia, anorexia and dyspepsia.
3. Onion is the only food known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, so it can lower blood pressure, reduce peripheral blood vessels, increase coronary blood flow and prevent thrombosis. It can resist the action of pressor substances such as catecholamine in human body, promote the excretion of sodium salt, and thus lower blood pressure. Regular consumption has a health care effect on patients with hypertension, hyperlipidemia and cardiovascular and cerebrovascular diseases;
4. Onion has a certain refreshing effect, which can help cells make better use of glucose, lower blood sugar and provide heat energy for brain cells. It is a good diet for diabetics and listless people.
Onion contains a substance called phlogiston quercitrin 9, which is one of the most effective natural anticancer substances known at present. It can prevent the variation of biochemical mechanism in vivo and control the growth of cancer cells, thus having anti-cancer and anticancer effects;
6. Selenium, a trace element contained in onion, is a strong antioxidant, which can scavenge free radicals in the body, enhance the vitality and metabolic ability of cells, and has the functions of preventing cancer and resisting aging;
7. Onions also contain a certain amount of calcium. In recent years, Swiss scientists have found that eating onions regularly can improve bone density and help prevent osteoporosis.
2. onion observation diary 400 words x year x month x day x week x weather: sunny
Today, I raised the onions that my mother bought for cooking. As a plant for my diary, I took a glass bowl and put some water in it.
X year x month x day x week x weather: sunny day
Today, I found that the onion has grown a little white root, and the onion has also opened a little. My mother said that if I wanted the onion to grow faster, I would put it on the balcony and let it grow in the sun. I listened to my mother and moved the onion to the sun.
X year x month x day x week x weather: sunny day
Today, I really found that onions have green buds and longer roots. I was so happy that I added some water to the onion to make it grow faster when it was full.
X year x month x day and week
Today, I found that the mouth of onion has widened and a small green bud has grown. The buds that grew yesterday have become longer today, and now there are two small buds, one of which is shorter than today. I added water to the onion again.
X year x month x Friday
Ah, why are there so many green shoots sprouting today? I called my mother to come and see. My mother said that plants like sunshine and water, and they will grow quickly if the weather is not too cold.
X year x month x day and week
I haven't observed it for two days. I went to see it this morning and found that I haven't seen it for two days. Now, several small buds have grown. I counted, there were 13 buds and many roots.
X year x month x day and week
I told my mother to move onions to school for students to visit tomorrow. In the evening, I counted the onion buds, which were 23 * * * and had many white roots. I told my mother that onion leaves are enough for cooking.
3. Onion Observation Diary It will be sunny on September 19, 20/X.
My mother bought some onions at noon today. My eyes suddenly lit up and I thought of the task that the teacher asked us to plant a plant for observation after school. Just grow onions! As soon as I came up, I quickly took a convenient bowl in the kitchen, then put a modest onion in it, and poured some water to drown the onion in half. I was looking at my "masterpiece" proudly. When my mother came to see it, she was surprised and said, "It's just that if you use so much water, you will drown the onion." After listening to my mother's words, I quickly poured out some water, but I was thinking, "With such a little water, onions will be sucked dry all day." Can onions grow without water? "
4. Composition Planting Onions At noon today, my mother bought some onions. My eyes suddenly lit up and I thought of the task that the teacher asked us to plant a plant for observation after school. Just grow onions! As soon as I started, I quickly took a convenient bowl in the kitchen, then put a modest onion and poured some water to drown it in half. I was proudly looking at my "masterpiece" when my mother came over and saw it and said in surprise:
"Curtin, if you use so much water, you will drown the onion." After listening to my mother's words, I quickly poured some water out, but I was thinking, "With so little water, the onion will be sucked dry all day. Can onions grow without water? "
Two days later, I found that the top of the onion was cracked, and a green seedling was sticking out, like a big purple egg. The growing seedling was exposed bit by bit, like a chicken pecking in the eggshell. I touched it with my hand in surprise. It was slippery and soft. I took the onion out of the bowl by hand and looked at it carefully. The roots of onions grow many short white roots. It is these roots that absorb the water in the bowl and keep the onions growing. I put the onion back in the bowl, and I found that the onion was raised a little by its roots. If there were more roots, onions wouldn't be pushed out of the bowl, would they? Thinking of this, I pressed the onion, and my mother smiled: "Don't press it, silly child, if you press it any longer, it won't last long." After listening to my mother's words, I was too scared to press it again.
This morning, I found that the onion seedlings are greener. I measured it with a ruler. It is 6 cm high, like a small pillar. When I came home from school at noon, I was surprised to find that the onion seedlings had split into several pieces. Who broke the onion? I quickly told my mother, but my mother said unhurriedly:
"Onion seedlings are dividing leaves!" Oh! I realized that this was a false alarm.
How fast the onion seedlings grow! I seem to hear the sound of onion "whoosh, whoosh, whoosh" growing upward every day. The onion seedlings are already 3 inches tall. My mother said it would be cut to taste in a few days. I think it would be great if the onion seedlings can grow up quickly and become another onion!
5. Onion observation diary, 400 words, 65438+1sunny on October 20th.
Today, I picked up an onion at home, found a plastic cup, put half a glass of water, and turned the onion upside down.
The onion soaked in water is as big as a steamed stuffed bun, and the round onion is bare from top to bottom. White skin is like putting white clothes on onions, and onions are like mothers pregnant with babies. I am also looking forward to the rapid growth of onion seedlings.
65438+1sunny on October 25th.
Today, I went to the windowsill to observe onions again. Great changes have taken place in onions. It grew four clusters of onion seedlings, and each cluster was divided into five. The longest onion seedling is 49 cm, and the shortest is 17 cm. Some small onions grow straight, and some bend in the middle like plastic tape measures. In order to prevent the onion from growing crooked, I quickly put three rubber bands around the place where the onion loves to bend. The color of onion seedlings is emerald green, the bottom is light green, and there are dark green stripes at the bottom, which are orderly.
Suddenly I found that the onion was getting smaller. I ran to ask my mother, "Because it gave its nutrients to the onion seedlings, the onions gradually became smaller." Mom said. "Maybe the onion will wrinkle in a few days!"
Look under the onion. The roots have grown out. The root is about 4 cm long. The color of the root is white, a little yellow, like grandpa's beard.
126 October 65438+ fog
This morning, I found a new young leaf growing under the onion seedling. The higher the young leaves go, the lighter and greener the color is. The bottom of each cluster is very similar to the bottom of old corn. The longest is 52 cm, and the shortest is 19 cm. Onions turn light green and smell spicy. It smells pungent. The roots of onions have grown to 6 cm.
Seeing that onions grow so well, I think mother onion is too great to breed so many onion seedlings for nature. I like my onions.
6. The growth process of onion and potato in water Composition 1000 words Yesterday I learned some truths, which are of great significance to me, but this truth comes from potatoes in home-cooked recipes.
The thing is, I was helping my mother cook when I suddenly saw my mother peeling potatoes. My mother peeled the potato buds, instead of cutting them off, she dug them out with a knife. At this moment, I am puzzled. Why didn't she just peel them off, but dig them out?
I help my mother cook, and then put potatoes and vegetables on the table. I took a piece of potato and put it in my mouth. I chewed it and thought, Hmm! How delicious! Potatoes and sprouts are really delicious. But that problem has been bothering me. I'd better wait for dinner and turn on the computer to check the information!
So I finished my meal quickly. I turned to my mother and said, "Mom, I want to check the information about potatoes."
Mother happily replied: "OK! Check it quickly! "
I ran to the computer, turned it on and plugged in the information about potatoes. The original scientific name of potato is potato. The reason why I want to dig out the buds of potato is because they are poisonous and must be carved from the roots.
"oh! I see, potato buds are poisonous and must be dug out! "
At this time, my mother also came up: "Yes! Poisonous people are like potatoes, and shortcomings are like potato buds. If the poison bud is dug out, then this person will have more advantages and fewer disadvantages, which means that he will be close to a perfect and healthy person. On the contrary, it will grow bigger and bigger, and finally the potatoes will not be eaten, and people will be poisoned. So, son, you have to dig out your "poison bud" and don't let it spread. "
This sentence has benefited me a lot. I believe I can do it.
7. Composition Planting Onions At noon today, my mother bought some onions. My eyes suddenly lit up and I thought of the task that the teacher asked us to plant a plant for observation after school. Just grow onions! As soon as I came up, I quickly took a convenient bowl in the kitchen, then put a modest onion in it, and poured some water to drown the onion in half. I was looking at my masterpiece proudly. When my mother came to see it, she was surprised and said, "Curtin, if you use so much water, you will drown the onion."
After listening to my mother's words, I quickly poured out some water, but I was thinking, "With such a little water, onions will be sucked dry all day." Can onions grow without water? " Two days later, I found that the top of the onion was cracked, and a green seedling was sticking out, like a big purple egg. The growing seedling was exposed bit by bit, like a chicken pecking in the eggshell. I touched it with my hand in surprise. It was slippery and soft. I took the onion out of the bowl by hand and looked at it carefully. The roots of onions grow many short white roots. It is these roots that absorb the water in the bowl and keep the onions growing. I put the onion back in the bowl, and I found that the onion was raised a little by its roots. If there were more roots, onions wouldn't be pushed out of the bowl, would they? Thinking of this, I pressed the onion, and my mother smiled: "Don't press it, silly child, if you press it any longer, it won't last long."
After listening to my mother's words, I was too scared to press it again. This morning, I found that the onion seedlings are greener. I measured it with a ruler. It is 6 cm high, like a small pillar. When I came home from school at noon, I was surprised to find that the onion seedlings had split into several pieces. Who broke the onion? I hurried to tell my mother, and my mother said unhurriedly, "The young onions are dividing leaves!" " "oh! I realized that this was a false alarm.
How fast the onion seedlings grow! I seem to hear the sound of onion "whoosh, whoosh, whoosh" growing upward every day. The onion seedlings are already 3 inches tall. My mother said it would be cut to taste in a few days. I think it would be great if the onion seedlings can grow up quickly and become another onion.