4.探究“液体压强”特点在探究液体内部是否存在压强及其特点时,许多生活中的许多用品都可以作为实验仪器,如饮料瓶、塑料薄膜袋、一次性水杯、橡皮膜等。找来这些物品亲自动手做一做,就能让我们真正体验到液体内部压强的存在,并在体验中找出液体内部压强的特点。还是以饮料瓶为例,设计的相关实验如下:实验1把一个较柔软的空饮料瓶去掉瓶盖口朝上竖着逐步伸入水中(不要淹没瓶口),可以观察到空饮 4. Explore “Liquid Pressure ” Features In exploring the existence of pressure inside the liquid and its characteristics, many of the many products in life can be used as laboratory equipment, such as beverage bottles, plastic film bags, disposable cups, rubber membrane and so on. Getting these items do it yourself, we can really experience the existence of the pressure inside the liquid, and in the experience to find the characteristics of liquid pressure inside. Or drink bottle, for example, the design of the experiment is as follows: Experiment 1 A softer empty beverage bottle Remove the bottle mouth upward and upward gradually into the water (do not submerge the bottle), you can observe the empty drink