Outside the round earth, there is a vast space. In the past century, many rockets were launched into space, and people explored and practiced in space. So this time, the school organized us to watch Tiangong Classroom. Among them, I am most interested in the experiment of ice and snow. The astronaut teacher took out a bag full of transparent liquid and squeezed out a small ball as crystal clear as a pearl. After a while, the ball floated up and remained round and spherical, only slightly twisted from time to time. This surprised me. I thought, wow, without gravity, liquid is amazing! The astronaut teachers gently touched the spherical liquid again, and the liquid immediately formed a round blue ice hockey, which surprised me even more. Under the astronaut teacher's explanation, I nodded inexplicably, thinking that water is so magical in space.
In this Tiangong class, I not only experienced such a magical phenomenon, but also increased my knowledge. The power of science really makes me sigh. I think, "A strong teenager makes a strong country, and a wise teenager makes a wise country." In the future, I will study harder, become a scientist and make contributions to my motherland.
2. The diary of the second lesson of the third grade Tiangong classroom in primary school is 300 words.
Today, the teaching of the Heavenly Palace is carried out in China. Three astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu showed us space scenes and interesting experiments, and also showed us life in space. This lecture on the space station shocked me greatly and made me interested in science.
3. The diary of the second lesson of the third grade Tiangong classroom in primary school is 300 words.
From the ancient myth "the Goddess Chang'e flying to the moon" to the story of installing 47 rockets on chairs in Ming Dynasty. Let us know that great scientific exploration and practical spirit have created great undertakings. On March 23rd, Shenzhou XIII astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu turned into teachers and gave us a unique "Tiangong class". In this "Tiangong Classroom", we saw the working and living scenes of astronauts, such as: ice and snow movement experiment, liquid bridge demonstration experiment, oil-water separation experiment and so on. I think science is an interesting and mysterious thing, so we should be good at observing things around us, be diligent in thinking and explore scientific knowledge in our daily life. In short, I still have a lot of knowledge to learn. I dream that China's national flag can be planted all over Mars. I look forward to traveling in space by spaceship one day and making contributions to the space cause of our motherland!
4. The diary of the second lesson of the Tiangong classroom in the third grade of primary school is 300 words.
Today, I watched the second lesson of "Tiangong Classroom" brought by astronauts in the classroom, and I couldn't calm down for a long time! Many mysterious and magical physical phenomena are presented to us one by one through the interesting scientific experiments of astronauts. Among them, the experiment that impressed me the most was that astronauts squeezed wet towels with their hands in space. The water squeezed out of the towel did not drop to the ground as we thought, but wrapped the astronaut's hand as lightly as gloves! That picture is really amazing! 5. The diary of the second lesson of the third grade Tiangong classroom in primary school is 300 words.
Today, my classmates and I watched the second lesson of China Aerospace "Tiangong Classroom" at school. The astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu of Shenzhou XIII became "space teachers" again, giving us a very lively and interesting lesson. This space teaching activity continues to follow the path of dialogue between heaven and earth. In class, three teachers demonstrated the space "ice and snow" experiment, liquid bridge demonstration experiment, water-oil separation experiment and space parabolic experiment for us in the space station. And introduce and display space science facilities. For example, the space "ice and snow" experiment demonstrated the crystallization of saturated liquid under weightlessness. What impressed me most was the oil-water separation experiment. As we all know, in normal environment, water and oil are separated, but in weightless environment, the phenomenon of water-oil separation disappears. The experiment also demonstrates the separation phenomenon of centrifugal force produced by rotation. It's incredible! The students who watched in class constantly exclaimed and expressed their yearning for science with warm applause.
Through the Tiangong classroom, I not only learned wonderful scientific knowledge, but also felt the power of science and technology. I also want to study hard so that I can travel in space when I grow up.