9 SCIENTIFIC PRINCIPALS

Scientific Principals "Welcome to the Emerson School Science Fair!" said a big sign over the cafeteria door. There

“欢迎来到爱默生学校科学博览会！”自助餐厅门上的一个大牌子上写着。 有

was the Principal, standing by the door, saying hello to parents. She was smiling, but Bean thought you could never be too careful about principals. "I know a shortcut," she said to her mom and dad. "Let's go through the kitchen." Once they were inside, Bean and her parents met up with Ivy and her mom. "Where's your project, girls?" asked Ivy's mom. "Our class is over here," said Bean quickly. "Let's go." Sure enough, there was Ms. Aruba-Tate, next to a table marked "Room Twelve: Global Warming." Before her parents could start yakking with Ms. Aruba-Tate, Bean dragged them over to a bench where five kids were sitting in a row. "Look," she pointed. "That's Vanessa's project." Her mom and dad looked. "Looks like a pack of kids to me," her dad said. "What's the project?"

校长站在门口，向家长们问好。 她在微笑，但比恩认为，对校长再小心也不为过。 “我知道一条近路，”她对爸爸妈妈说。 “我们穿过厨房吧。” 他们一进去，比恩和她的父母就见到了艾薇和她妈妈。 “你们的作业呢，孩子们？”艾薇的妈妈问。 “我们班在那边。”比恩赶紧说。 “我们走吧。”果不其然，有一位女士。 阿鲁巴-泰特，旁边的桌子上写着“12号房间：全球变暖”。 在她的父母开始和她聊天之前。 阿鲁巴-塔特，比恩把他们拖到一张长凳上，那里有五个孩子坐在一排。 “看，”她指了指。“那是凡妮莎的项目。” 她的爸爸妈妈看了看。“在我看来就像一群孩子，”她爸爸说。 “有什么计划？”

"Wait. You'll see," said Bean. "Five," yelled Vanessa, holding a small clock. "Four. Three." "I have to go to the bathroom," said one of the kids. "No you don't. Two. One. Go!" All together, the five kids took a deep breath and held it. "These are my brothers and sisters," Vanessa explained to the watching parents. "We're reducing carbon dioxide by not breathing out. Toby can hold his breath for seventy-six

”等。你会知道的。”比恩说。 “五，”凡妮莎喊道，手里拿着一个小钟。 “四。三。”“我要去洗手间，”其中一个孩子说。 “不，你不知道。两个。一个。去吧!”五个孩子一起深吸了一口气，握着它。 “这些是我的兄弟姐妹，”凡妮莎向在场的父母解释道。 “我们通过不呼气来减少二氧化碳。 托比可以屏住呼吸76秒

seconds. If everyone stopped breathing out for fifteen minutes a day, the world would be a lot cooler." She looked at her clock again. "Five. Four. Three. Two. One." "Whew." The kids blew out their held-up breaths. Their faces were red. "Are you guys doing yours soon?" Vanessa called to Ivy. Ivy made a shh-face and turned to her mom. "Come on, Mom. I want to show you MacAdam's lime car." MacAdam was hiding under the table, but he had a real lime with a paper clip and a penny in it and his drawing on the top of the table. It smelled good. Next door was fifteen minutes a day, the world would be a lot cooler." She looked at her clock again. "Five. Four. Three. Two. One." Eric's project. He hadn't had time to build the garbage robot, so he had used one of his toy robots to show his idea. A little plastic man had just tossed a clump of paper on

秒。如果每个人每天停止呼吸15分钟，世界将会凉爽得多。” 她又看了看钟。 “五。四。三。两个。一个。” “呼。”孩子们喘着粗气。 他们的脸都红了。“你们也快开始了吗？”凡妮莎叫艾薇。 艾薇做了个鬼脸，转向她妈妈。 “来吧，妈妈。我想给你看看麦克亚当的石灰车。” 麦克亚当躲在桌子下面，但他有一个真正的石灰，里面有一个回形针和一个便士，桌子上放着他的画。 闻起来很香。隔壁是每天15分钟，世界会凉爽得多。” 她又看了看钟。 “五。四。三。两个。一个。” 埃里克的项目。他没有时间建造垃圾机器人，所以他用他的一个玩具机器人来展示他的想法。 一个小塑料人刚刚把一团纸扔了上去

the ground. He was smiling. He had no idea that behind him, a robot was glaring, waiting to whack him on the head. Eric had also made a poster. It read, "Clean Up or Else!" Next to Eric's robot was a vacuum cleaner. Dusit's idea was to vacuum up all the heat, put it in a giant bag, and send it into outer space. In real life, it would have to be a special vacuum cleaner, but he had brought in a regular one as an example. "So that's where it went," his mom said.

地面。他在微笑。 他不知道在他身后，一个机器人正瞪着他，等着打他的头。 埃里克还做了一张海报。 上面写着：“要么清理，要么收拾！”埃里克的机器人旁边是一台真空吸尘器。 杜西特的想法是把所有的热量都吸走，放进一个巨大的袋子里，然后把它送到外太空。 在现实生活中，它必须是一个特殊的真空吸尘器，但他带来了一个普通的例子。 “原来是这样，”他妈妈说。

Marga-Lee had made a picture of Earth with mirrors sticking up all over it. She said that the mirrors would reflect the sun's rays back out into space. "Wow," said Bean's dad, looking at her picture. "Pretty good idea." Bean almost said "Wait 'til you see ours," but she didn't. She looked at Ivy and made a mouth-zipping sign. Ivy nodded. Drew had made a baking soda and vinegar volcano. It didn't have much to do with global warming, but it was fun to watch the foam spurt out of the top. He had put green food coloring in the vinegar.

玛嘉-李画了一幅布满镜子的地球图。 她说镜子会把太阳光反射回太空。 “哇，”比恩的爸爸看着她的照片说。 “好主意。”比恩差点说“等着看我们的吧”，但她没有。 她看着艾薇，做了个闭嘴巴的手势。 艾薇点点头。德鲁用小苏打和醋做了一个火山。 这与全球变暖没有太大关系，但看着泡沫从顶部喷出是很有趣的。 他在醋里放了绿色食用色素。