About 300 words on scientific phenomena of life

Writing ideas and points: Take scientific phenomena in life as the subject, describe the scientific phenomena, and then express your own thoughts and opinions.

Text:

We can say that science is everywhere in our lives. There is science in diet, in exercise and even in clothing and sleep. Human life is always inseparable from science. If there is no science in life, there will probably be chaos in the world! Now I'm going to tell you about the science that's happening in my life!

I still remember that during the summer vacation of my third year, my grandmother and I returned to my hometown. One afternoon I was catching butterflies in a small wildflower bush next to the chicken coop, and suddenly I found a few chickens in the chicken coop eating fine sand and gravel on the ground. I said to myself, this must pierce thechicken stomach! So I quickly jumped into the chicken coop and chased away the chickens that were eating sand and gravel. But not only did the chickens not like it, they also hurt my hands.

I was very angry, so I ignored the chickens and ran to Grandma shouting, “Grandma, look, the chickens made my hands red. Grandma who was washing the dishes turned around and looked at her.” When he looked at me, he said, "It's okay, you didn't bite it hard, and it will stop turning red soon. By the way, what do you do when the Are the chickens harassing you?" these chickens were eating sand, and I went to chase them, so they caught me.

By the way, grandma, go sweep away this layer of sand, otherwise these chickens will be eaten again. " Grandma. I laughed after hearing this and said, “Silly girl. , I put it on purpose.” “Ah!” I was so surprised that I quickly asked: “ Pourto which grandmother seemed to disapprove and I said: “Little ancestor, you?” I didn't see myself busy! "Go to your father." I had no choice but to wait for my father to come back.

After a while, Dad hasn't come back yet and I can't wait any longer. At this time, I suddenly remembered that I seemed to have brought the book "One Hundred Thousand Whys" with me when I came here. So I hurried back home to find the book.

Later, I found the answer in a book. It turned out that chickens eat sand because they don't have teeth, so they can't digest larger foods, so they have to eat sand, gravel, and broken glass. Something is placed in the stomach to rub against the food. This is why I saw the phenomenon.

Now I finally understand. Classmates, this is the science of life. So is there science everywhere?for life ?

Pendulum----Principle of isochronism

Fuse----Excessive current causes heat to increase and burns the wire

Steam the steamed buns and add alkali - sodium carbonate , Na2CO3, heat to generate CO2, making the steamed buns "greasy"

Lightning rod ---- discharges at the tip, directing electricity from the clouds ​​toward the ground to prevent it from hitting buildings.