Wonderful light bulb essay 200 words

A 200-word essay on the wonderful light bulb

Once upon a time, there was a light bulb that could emit dazzling light. But he has been working in a woodshed of a family. As time goes by, its light gradually becomes darker and darker, so it is no longer as majestic as before.

Finally one day, it could no longer light up. This family was unwilling to throw it away, so it was lucky to stay here. Before I had too much breakfast, my mother asked me to do my homework in the room. After a while, a new light bulb appeared next to the old light bulb. The new bulb emits a dazzling golden light that makes the old bulb jealous. The new light bulb greeted the old light bulb warmly: "Hello! You must have been working here for a long time, right?" The old light bulb said coldly: "What's so great about you? You dare to come to my site. You really don't want us to talk here today." Let's talk about safety! "The new bulb ignored the old bulb and continued to work.

The new light bulb is still as enthusiastic about the old light bulb as ever, while the old light bulb is still so indifferent. The old light bulb thought: The new light bulb is brilliant, but I am dull. The master must not like me now, but like that stupid guy. Just come up with an idea!

At night, the old light bulb said contemptuously to the new light bulb: "I will definitely smash you to pieces." When you read "The little lotus has just revealed its sharp corners, a dragonfly has already stood on its head." Are there green lotus leaves, graceful lotus flowers and resting dragonflies in front of you? From ancient times to the present, literati in the past dynasties have all kinds of praise for lotus. Why don't they praise the lotus root growing in the mud? As we all know, lotus flowers can only be viewed for viewing, but lotus roots are closely related to our lives. Therefore, I now recommend lotus roots that grow in the mud. The new light bulb was not angry after hearing this, but said calmly: "Wanting to harm others is equivalent to wanting to harm yourself, you'd better give up!" After hearing this, the old light bulb suddenly became furious and stared at the new light bulb fiercely.

The next night, the old light bulb finally couldn't bear it any longer and bumped into the new light bulb with its eyes closed. The poor new bulb immediately broke a small hole. When the old light bulb saw it, it gloated and said, "You deserve it!" The new light bulb had only a little light left, but it still insisted on lighting up the woodshed. The old light bulb fired again, maybe too hard, and they all died together - broken.

The young and old in this family were awakened by the sound of "bang bang" and walked into the woodshed in unison. Who would not be surprised to see the light gone and the woodshed covered with debris? Before dying, the old light bulb finally understood what the new light bulb said.

A 200-word essay on the wonderful light bulb

I took the carefully crafted scientific gadget - the light bulb, and looked left and right. I was afraid that something would go wrong, so I tried again. Check it again to make sure nothing goes wrong. Seeing the little light bulb light up in my hand again, I was filled with great pride.

However, during the experiment, I also found that during the production process, to avoid battery short circuit, one end of the dry cell battery is a copper cap and the other end is a zinc shell. A short circuit occurs when these two ends of a battery are directly connected together by a wire. When there is a short circuit, the battery and wires will become hot in an instant. Not only will the bulb not be able to emit light, but the battery will also break down quickly.

This Science and Technology Festival allowed me to learn more knowledge and understand more truths. Autumn nostalgia is an article in the textbook. This article mainly writes about The great love of the author’s mother, who has both legs disabled. After the author's legs were disabled, his temper became violent and unstable. From time to time, he would become violent, throw things, lose his temper, etc. His mother secretly cried for her son in the corner, feeling sad and trying every means to get him out of the predicament. People have to thank Edison, the great inventor, who invented the electric light and added a new light to people. In recent years, every spring, many tourists come from all over to see the rapeseed flowers. Grandpa said that Xiangshui Stream will become a famous tourist attraction in the near future, and everyone is welcome to visit Xiangshui Stream.

The necessities of life! Now, I also have my own "light"! I hope the next Science and Technology Festival will come soon!

A 200-word essay on the wonderful light bulb. The bird hid in his nest;

The annual Science and Technology Festival is coming, and the school held The students heard the news about the small science production activity. In the morning, the caterpillar went to find the little ant. The caterpillar and the little ant went to the mirror to comb their feathers as usual. "Ah!" Ah!" "Ah!" Several screams came from the small home, "Oh my God! My feathers have turned into colors!" "Who is it? Who is it?" "Oh my God! I don't Dare to go out! I have to move quickly, otherwise I will be laughed to death!" The little ant asked the butterfly, and the three of them went out to play together. They accidentally found half an egg shell while playing, and they found a wooden stick. The caterpillars and ants played on a seesaw, with butterflies dancing for them. I feel happy that the little hamster is so cute. My favorite animal is the little hamster. Zizi, everyone wants to take this opportunity to show off their talents. And I am no exception. Even when I am eating, I am racking my brains to think of what small things to make? I looked up at a bright fluorescent lamp, and an idea suddenly popped into my mind: make a lamp.

So, after coming home from school one day. I found all the materials: a wire, a dry cell battery and a small light bulb. Without saying a word, I started working hard. Once failed, come again, fail again, come again... At noon, the sun was scorching hot, and people returned home from the farmland and construction sites. They "enjoy 'delicious food'" with the animals, but the delicacies they eat are different from those of the animals. After the meal, people fell down and began to fall asleep; among animals, no one is so "lazy"! Because, some of their "members" are still "working" hard! Of course, the "lazy" ones must have slept soundly! Just like that, I tasted failure. But I was not to be outdone, and my sister ate it in a hurry. With a "crack" sound, one of the water chestnuts split into two halves. She swallowed the meat in three times. This made many water chestnuts become her "defeats". Weak, find your father who was an electrician.

After listening to my father’s explanation, I realized that there was something wrong with the wiring of my small production. Because electricity flows from one end of the battery, through the light bulb, and back to the other end of the battery, forming a complete loop, the light bulb emits light. But I missed the most important link. So the little light bulb doesn't light up. After I made a little modification, the little light bulb miraculously lit up.

A 200-word essay on the wonderful light bulb

One day, the house was very lively because the switch and the light bulb kept arguing.

The light bulb said: "Look, I am shining brightly. The host and guests have always said that I am so bright. You only know where to stay; I can illuminate the house with light and bring happiness to others." Warmth and light, look at you, it’s useless.”

The switch was angry and said: “I, I can control you!”

“Ha! Me? That's funny."

"Don't believe it? Just try it." Switch said.

So the switch turned on and off, on and off, making the light bulb dizzy and almost stopped working.

"Spare me, I will never laugh at others like that again," Bulb said.

This story tells us that we should not look down on others because we think we are great. We should compare the strengths of others with our own shortcomings, otherwise we will be punished.

A 200-word essay on the wonderful light bulb

"Ding, ding, bell," the *** in class covered the noise after class. We sat upright on the stools and waited quietly. The arrival of the teacher.

Not long after, the teacher walked into the classroom carrying a huge box. What's inside? I'm puzzled.

When Chen Hongjin and Wu Chenghang took out a few things from the box, I squeezed forward full of questions.

"Wow! What a small technological tool!" I said to myself in surprise.

After getting the small and exquisite scientific tools, I carried the quilt and walked into the house. At this time, my mother came back and saw that the quilt had been dried. She praised me and said, "You have grown up and can be a doctor." My right-hand assistant, you are awesome!" I ran into the house shyly, feeling beautiful and very happy. So I went downstairs to enjoy the view. Full of joy, wow, there is a light bulb the size of a peach nut inside!

The science teacher could not restrain his excitement and said happily: "Students, let's do an interesting experiment next. It's like this..."

"Yeah! "The students all cheered. You know, this is the first time for us to do experiments this semester!

Our group took the battery. According to the teacher's instructions, we first cut off both ends of the wire to expose the copper wire, then pressed one end of the copper wire under the negative terminal of the battery, and then placed the light bulb on the battery. on the other end of the battery, and finally place the other end of the wire on the connection point of the light bulb. Okay, you're done! But why, it's late, and I'm alone at home. Suddenly the wind blew, as if the bone spirit was calling me. It scared me so much that I hid in bed. I thought: Mom and Dad, why haven’t you come back yet? Do you want me anymore? Why not? After careful observation, I found that the copper wires were not aligned!

Finally, "hard work pays off", the lights came on, and the four of us jumped for joy.

Wonderful composition light bulb battery