在我们的身边,无处不存在着科学,就拿我们生活中最常用的水来说,它就充满着科学。去年,我组科普协会外出活动时,有一学生指着桥下的古运河说:看,这条河真脏啊!大家一看,是啊,河水像墨水一样黑,连河边的石头都被染成黑色,水面还漂着垃圾和油渍。我心想:这是个好材料,让学生来关心一下我们生命源泉——水吧。于是我对他们说:我们要一起来保护这条河,保护我们的生命源泉! Around us, there is science everywhere, and science, as far as the most commonly used water in our lives is concerned. Last year, when I went out for activities in the Popular Science Association, a student pointed at the ancient canal under the bridge and said: Look, the river is so dirty! Everyone sees that, ah, the river is as black as the ink, Dyed black, the surface is still floating garbage and grease. I thought: This is a good material for students to care about our source of life - water. So I said to them: We want to work together to protect this river and protect our source of life!