The earth we live in, like the mother of human beings, is amiable most of the time. Spring, birds and flowers; In summer, the sun shines high; In autumn, a cool breeze blows gently; In winter, it is covered with snow. However, once Mother Earth gets angry, it will cause devastating damage. In order to let us calmly and tactfully deal with disasters, the school organized interesting popular science activities.
First, we watched a popular science movie. I will never forget some scenes in the movie: when the tsunami broke out, the surging tide rushed to the buildings on the shore like a fierce lion; When the earthquake came, the house first shook violently, and then the wall collapsed instantly, which was a mess; When the fire comes, the raging fire devours everything around it like a wild animal.
Next, we lined up neatly and went to the playground to participate in the "crossing the line of fire" activity. The staff said: As long as the steel goes around the steel pole to the finish line and does not touch each other, it is victory. If the steel ring touches the steel pole, it will call the police. When the alarm sounds, it means that the game has failed. A seemingly simple game is actually a psychological quality. When I walked slowly around the steel pole with a steel ring in my hand, the steel ring was attracted by the steel pole with a slight shake of my hand, and the alarm sounded, and I failed. Then, one after another failed. In the end, Liu Wang in our class lived up to expectations and won success with his composure.
Today's popular science activities, I not only learned some principles and common sense of tsunami, earthquake and fire, but also learned how to deal with these disasters correctly and how to escape in the face of disasters. What a big receipt!
Today, I am concentrating on my homework. Suddenly, there was a buzz. I looked up and saw a bee humming leisurely across from me! I have always been afraid of bees, so I quickly called my father to "kill pests" for me.
When my father heard me calling him, he rushed over and asked me, "What is it?" I pointed to the bee and said, "Get it away, it's terrible." Dad said, "Look at you. If you leave it alone, it won't attack you easily. " I was surprised and said, "Why?" Dad said, "Because if a bee stings you, the sting on the back of its ass will be pulled out with its internal organs, and it won't live." As soon as I heard it, I became interested and said, "Let me see what the thorn on the back of its ass looks like." "Very good."
Dad pulled out a small napkin and gave the bee a yank. Before the bees could react, they became his prey and struggled feebly in his hands. Dad took it and hung it upside down, pointing to the thorn that stretched and shrank on its ass and saying, "This is its thorn. If you pull it out, the bee will die soon. " As he spoke, dad took advantage of the bee to stab the thorn again. When he pulled it, a yellow thing came out. I asked, "Is that its internal organs?" Dad said, "yes, now it has no resistance." Let go! " "I nodded. As soon as dad let go, it struggled to fly out.
I learned a lot through this. It turns out that science is really everywhere!
During the summer vacation, the teacher took us to the gym and watched an interesting popular science exhibition.
Walking into the gymnasium, I saw many strange sights. Hey, what's that? A faucet has been running out of water, but there is no water pipe connector. Only when I saw the introduction did I know that there was a transparent water pipe hidden in the water. Ah! It turns out that the water pipe is the water in the water supply faucet. This is the so-called "passive water". My favorite is a mirage. I stood a meter away and looked ahead. There is a spring hanging in the air. I reached out to touch curiously, but I couldn't touch anything. That's a mirage!
I saw another big screen. There are many strange patterns on it. The most striking thing is that there are two people on a big head. It says below that this painting has nine faces. It is said that all they found were IQ 180. Seeing that many teachers are coming, I am curious. Alas, I only found three faces. Our Chinese teacher Ma pointed to the back and soon found nine long faces. What a good teacher!
There are many interesting things. I stopped, talking and laughing all the way, watching my classmates touch the big microphone with their hands. Listen to the students playing Doraemon on the electronic piano; Feeling the laughter of my classmates, I really gained a lot.
Reluctantly left, I think the progress of science is really fast, and it fascinates me more and more. Also let us know that some things should not be too superstitious. We should believe in science, which can lead us to explore many unknown secrets.
I think this popular science exhibition is very meaningful.
This week, the Science and Technology Museum is a "large-scale scientific exhibition of human mysteries". This morning, the three of us went to visit the Science and Technology Museum together.
As soon as we entered the exhibition hall, we were greeted by paintings and various specimens. We moved slowly along with the crowd. Rilla took my hand and said she was scared. Her father and I encouraged her, but it was really mysterious to see various organs of the human body, especially normal lungs and smokers' lungs. This sharp contrast is really terrible. Rui is most interested in the formation of fetus, from embryo to 7-month-old fetus. We let Rui know the structure and function of various organs of the human body. Although some places are incomprehensible, at least we have learned some common sense of self-protection, and we also know that we should develop healthy living habits from an early age.