With the theme of "Innovation, Experience and Growth", the 36th Shanghai Youth Science and Technology Innovation Competition recently came to an end. Changning students won 55 first prizes in the youth science and technology innovation achievements section of this competition, continuing to rank in the forefront of the city, and the Changning District Shaoke Station won the excellent organizational unit demonstration award. Let's take a look.
Can ants from different nests coexist peacefully? Will the tea bag produce harmful substances after being brewed for a long time? How to origami box capacity maximum... As the "big winner" of the science and technology innovation competition over the years, Yuyi Primary School Xianghong Branch won 5 first prizes this year.
"I studied the safety of tea bags through four experiments this year." Fourth-year Zhu Siyan confidently introduced his research project.
Zhu Siyan saw that her father often drank tea bags to make tea, and by chance, she found that there were colored reflections in her father's tea cup, "Some tea bags have metal nails, will long-term brewing produce toxic and harmful substances?" If so, how to use tea bags to reduce harmful substances? Zhu Siyan decided to find the answer through experimentation. Under the guidance of the science and technology counselor, Zhu Siyan confirmed through experiments such as pH, solid precipitation, solid dissolution, calcium carbonate content and so on, that the longer the tea bag is brewed, the more likely it is to precipitate harmful heavy metal substances. She proposed that when drinking tea bags, we should try to choose tea bags that are not encapsulated by metal nails, and the brewing time of tea bags should not be too long.
Last year, with the research of "using natural fluorescent substances in fruits and vegetables to make invisible ink", Zhu Siyan also won the first prize of the Shanghai Youth Science and Technology Innovation Competition.
It is worth mentioning that the xianghong branch of Yuyi Primary School won the first prize this time by a second-grade student Wu You, who studied "whether ants with different nests can coexist peacefully". "On my birthday last year, my father gave me an ant workshop, I watched 5 worker ants busy, I wanted to add some helpers to them, the result was good intentions to do bad things, the new helpers not only did not help, but also lost both." 」 Frustrated, Wu worried about whether there was any way to make ants in different nests coexist peacefully and live together. Therefore, with the help of her parents, she purchased ants from different regions, built an ant nest observation room, and intervened to observe whether the ants could coexist peacefully by means of odor interference and intervention tentacles. Eventual experiments showed that the Japanese bowback ants in different nests were so hostile that it was almost impossible to confuse and change their perception with simple scent methods to make them live in peace.
"In the future, I want to study ants with more sophisticated instruments to see if I can find the 'key' to make them live in peace!"
It is understood that the study also won the "Shanghai Science and Technology Association Chairman Award" in this year's Shanghai Youth Science and Technology Innovation Competition.
Looking at the two elementary school students in front of her, Gu Wenting, a science and technology counselor, said, "It's hard to imagine that they used to be shy and blushing children who didn't dare to look at each other when they talked." We encourage children to do science and technology research and participate in competitions, not only to win awards, but also to participate in the process of children gaining self-confidence and ability. ”
On the fourth floor of the school, there is a "starry sky corner", hanging a five-pointed star with the names of the students who won the first prize of the science and technology innovation city and the names of the winning projects, "There is a sister who has won the first prize for four consecutive years, and I want to be like her." Zhu Siyan's eyes were full of envy.
Yuyi Primary School Xianghong Branch was founded in 1958 and became one of the first primary schools in Changning District to be named Shanghai Science and Technology Characteristic School in March 1997. Over the years, science and technology education has always been a feature of the school. In recent years, the school has created the "STEAM + Artificial Intelligence Education" school-based science and technology education course "Little Maker of Life". Through the development of the "Maker Series" course, Xiang Hong's children have become more observant, thinking, and trying to solve problems creatively. Some students found that it was inconvenient for the disabled to go to the toilet, so they built a model to design a mechanical arm to better help the disabled to go to the toilet with dignity; some students observed that there was no elevator in the old-fashioned public house, and the wheelchair going up and down the stairs was a big problem, so the electric wheelchair model that could automatically go up and down the stairs was successfully made; after garbage classification, some students found that everyone had more problems with pouring wet garbage, so an automatic induction broken bag anti-insect insect insulation wet garbage bin appeared on the red campus... "To the red of the small' With the help of artificial intelligence technology, makers strive to improve the problems encountered in life and make life better. Yuyi Elementary School said this to Gao Biru, vice principal of the Red Branch.
It is understood that in this year's Changning District in the Shanghai Youth Science and Technology Innovation Competition, in addition to Yuyi Primary School Xianghong Branch won a "great harvest", Yan'an Middle School, Yan'an Junior High School, Tianyi Primary School, Yuyi Primary School, Jiangwu Primary School represented by many schools also continued to maintain the city's leading position in the total number of awards and the number of first prizes.
Some of the photo sources are from the District Education Bureau
Reporter: Li Jingying
Editor: Li Bo