Events

Today, on October 26th, we invited Dr. Li Enming, the principal of Hanyang Junior High School to go to Dapo Elementary School for a diversified ability workshop in the field of natural sciences in primary and secondary schools. The main experimental items are alcohol guns. It is just a bit loud, and there is no harm to the body. The experimental steps are simple. In fact, it only uses wine essence to produce a large amount of carbon dioxide, and use a large amount of carbon dioxide produced instant carbon dioxide to make the lid spray the tube to achieve a bit of explosion effect. However, there are still cotton lines in the lid, so there will be some pictures that spray tube and alcohol in the whole process, but in fact, there will be no danger. This experiment is mainly to observe the picture of the lid spraying and alcohol in the tube. Although the burning picture, although there are many times to explain to the teachers, the experiments will not be too dangerous, but because the flame produces and huge sound during the experiment, the teachers will still be afraid of pressing the switch.