今天的科学课内容是让孩子感受盐对水的浮力的影响。我让我们“豆豆班”的豆豆们带来了水杯、鸡蛋,还有盐。他们在杯子里装上鸡蛋,去教室后面的水槽接水,杯子里水满了,鸡蛋却都沉在水底。有什么办法让鸡蛋浮起来呢?我让豆豆们把带来的盐往水杯里倒,一边倒一边搅拌,让盐融化在水中。一边放盐,一边观察,不一会儿,豆豆们开始欢呼:“鸡蛋浮起来了!”小雄杯子里的鸡蛋是第一个浮起来的,紧接着,很多豆豆的鸡蛋也浮起 The content of science today is to make children feel the impact of salt on the buoyancy of water. I let us “Peas class” Peas brought cups, eggs, as well as salt. They put eggs in the cup and went to the sink behind the classroom to receive water. The cup filled with water and the eggs were all sinking to the bottom. Is there any way to make the eggs float? I let Peas bring the salt into the cup down, while pouring while stirring, let the salt melt in the water. While the salt, while observing, and soon, Peas began to cheer: “Egg floating up!” "Xiao-hung cup of eggs is the first one to float, and then, a lot of Peas beans also float