<font color="#167efb"><b>小小实验员 四年级二班 王浩宇</b></font> Experimental materials：a tray,a Q-tip, milk, food coloring and some dishwashing liquid. <div><div>实验材料：一个托盘、棉签、牛奶、可食用色素和一些洗洁精 。 </div></div> Experimental procedure:<div>实验过程： </div> First, let's pour the milk in to the tray .<div>首先，我们把牛奶倒入托盘。</div> Next,let's add our food coloring. I'm going to make this beautiful! <div>接下来，我们滴入可食用色素。我要做的好看</div> Now,i'll dip the Q-tip in the dishwashing liquid.<div>现在，我要用棉签沾点洗洁精。</div> Ready ,Wow ,cool ! <div>准备好了吗？哇，太酷啦！ <br></div> Taday,we're going to make our experiment <div><font color="#ed2308"><b><br></b></font></div><div><b><font color="#ed2308">下面我为大家讲解，这个实验的全过程哦⊙∀⊙！</font></b>👇👇👇</div> <div><b>实验原理：洗洁精含表面活性剂，可破坏液体的表面张力，被扰动的牛奶带动色素翻滚运动，进而绘制出美丽的图案。</b></div><div><b>Scientific principle: Dishwashing liquid contains surfactants, which can destroy the surface tension of the liquid. The disturbed milk drives the pigment to roll, and then draws a beautiful pattern。</b></div>