如图所示，容器中间用隔板分成两部分，隔板下部有一圆孔用薄橡皮膜封闭，橡皮膜两侧压强不同时其形状为一凹面。它可以用来做“探究液体压强跟深度、液体密度有关”实验。
（1）要探究液体压强跟深度的关系，在容器的左、右两部分装入密度 （填“不同”或“相同”）的液体，会看到橡皮膜凸向深度 （选填“大”或“小”）一侧。
（2）要探究液体压强跟密度的关系，某同学在两侧装入酒精和水，如图，若橡皮膜表面平整，则在容器的右侧装入的是 （“酒精”或“水”）
（1）相同 小 （2）酒精
题目分析：（1）要探究液体压强和深度的关系，要控制液体密度一定，所以两侧装同种液体；密度相同时，深度小的压强小，所以橡皮膜会向深度小的一侧凸起；
（2）两侧分别装入酒精和水时，若橡皮膜平整，说明两侧压强相等，由于
，所以
，右侧装的是酒精。
“This Friday we'll have the yearly Egg Drop Challenge,” said our science teacher, Mr. Baker. “You can work alone or with a partner.” My friend, Cassie, and I smiled at each other. We always worked on projects 36 . The 37 of the challenge was simple—to build a protective container to keep an egg from breaking when 38 the stadium wall. I made my sandwich that afternoon while waiting for Cassie. 39 the butter-cream gave me an idea. “I have a brilliant design for our 40 container!” I said when Cassie arrived. “We can 41 the egg with some butter-cream.” “Why not put the egg in a basket with a parachute 42 ?” Cassie rolled her eyes. “The parachute is better than that stupid idea.” I couldn't believe it. Of course we'd had our little 43 in the past, but she'd never called any of my ideas “ 44 ” before. “Then I’ll build mine and you build yours!” 45 words had been out, our friendship was challenged. When Friday finally arrived, I had to 46 Cassie’s Egg Force One looked pretty good. 47, my Egg-cellent Egg Cream didn't look quite scientific. We kids carried our containers up three stadium steps and dropped them over the side wall. Those whose eggs broke were out; those whose eggs survived 48 three more steps and dropped them again. This would go on till the last egg broke. After four rounds, only Cassie and I were 49 . I let go of my box. I heard someone say “ew” after seconds. Had my egg broken? I raced down the 50 . The sidewalk was dotted with egg shells(蛋壳) from those 51 drops. Finally I found my little Egg-cellent Egg Cream. “That looks like egg drop soup, Laura,” Cassie said. She was holding her Egg Force One. My 52 raced. Had she won? I looked at her basket. 53 . “My egg bounced (弹起) 54 ,” she explained, pointing to a broken shell. “A tie（平局）,” Mr. Baker said. Cassie looked at me, and her glare（瞪眼） 55 . I laughed. She smiled…
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