Scientific inquiry, never ending

do you know? In space in 2007, 55-year-old Morgan gave the children a 25-minute "space class". Other astronauts became her "teaching assistants" and 18 students in grades 4-8 listened to the ground. And there is only one space lecture in the world, and it has been carried out today! After a lapse of six years, the technology is more advanced! Countdown, 10:05, the exciting space lecture officially began.

The most exciting time after the completion of the quality measurement, the pendulum movement and the gyro movement - the production of water film, water polo. I saw that Teacher Wang first inserted the needle into the drinking water bag and pumped out the water, then injected water into a metal ring to form a water film. Because this is impossible on land, gravity will “divide the water film”, so Teacher Wang asks everyone: “Is this water film strong?” After shaking their heads, the teacher shook the metal ring and the water film turned out. Instead of sprinkling it on the table like on Earth, it took out a crystal clear little waterdrop. At this time, Mr. Wang put a piece of plastic film with Chinese knot pattern on the surface of the water film, and the water film is still intact. The more miraculous moment has arrived. Each of us has widened our eyes. On the second water film, water is continuously injected into the water film through the drinking bag, and the water film turns into a crystal clear water polo. There is a series of bubbles in this large water polo, and Teacher Wang takes it out with a needle tube. The water polo still has no damage. Finally, Teacher Wang injected a red liquid, and the red color of the water ball slowly spread, and finally became a moving "red crystal."

The teacher's lecture is very lively and interesting. It is not as memorable as the science class. It is an experiment that tells us about the physical phenomena such as the motion characteristics of the object and the surface tension of the liquid in the state of weightlessness. It also allows us to fully understand the physical Wonderful place. The space lecture is a perfect curtain call, but our heart can't stop the curiosity of science. I think we should study hard, learn more scientific knowledge, and make greater contributions to the science of the motherland!

Shandong Taian Feicheng Longshan Elementary School sixth grade: Zhang Zheyu