1 A Secret Trip

Solving mysteries one experiment at a time Kater CHEMIST SOME PENGUIN PROBLEMS DR. KATE BIBERDORF WITH HILLARY HOMIE MAKE YOUR OWN ÉcHocoLate-coveReD: PREtZELS!

一次一个实验解谜凯特化学家一些企鹅问题博士。 凯特·比伯多夫和希拉里·侯默自己做ÉcHocoLate-coveReD：椒盐脆饼！

CHAPTER ONE A Secret Trip Convection (noun). A process that involves the transfer of heat. Basically, molecules in gases or liquids will really start moving and grooving. A burst of steam from your freshly made hot cocoa means that heat is transferring into the air. I CAN KEEP A SECRET. At least that's what I told myself. But it was next to impossible. After all, my best friend can practically read my mind. Her name is Birdie Bhatt, and we stood together in our school hallway the day after I found out. The morning bell was about to ring. "C'mon, tell me, Kate." Birdie flicked her long hair over her shoulder. "You know something." "Um, well... maybe." I glanced at a nearby bulletin board. In rainbow letters it said Throw Kindness like Confetti. Telling your BFF a secret isn't just like telling anyone a secret. Especially when she's told you so many secrets herself. And she's a great secret-keeper too. A

第一章秘密旅行对流（名词）。 传热：涉及热传递的过程 基本上，气体或液体中的分子会开始移动并形成沟槽。 刚煮好的热可可产生的蒸汽意味着热量正在传递到空气中。 我能保守秘密。至少我是这么告诉自己的。 但这几乎是不可能的。 毕竟，我最好的朋友几乎能读懂我的心思。 她的名字叫伯迪·巴特，在我发现这件事的第二天，我们一起站在学校的走廊上。 早晨的铃就要响了。 “来吧，告诉我，凯特。”伯蒂把她的长发拂过肩膀。 “你知道的。”“嗯,嗯… 也许吧。”我瞥了一眼附近的公告牌。 用彩虹色的字母写着：把善良像五彩纸屑一样扔出去。 告诉你最好的朋友一个秘密和告诉别人一个秘密不一样。 尤其是她自己告诉了你那么多秘密。 而且她也很会保守秘密。 一个

bunch of kids slogged past us in winter coats and backpacks. I yanked off my turquoise mittens. It was toasty warm inside the school. Lowering my voice, I leaned forward and whispered the secret. "I can't hear you." Birdie pulled off her mittens too. They were purple with swirls of silver. Which was typical of her unflashy-yet-artistic flair. She pointed at the noisy first graders at the end of the corridor. Stepping closer, I cupped my hand over my mouth. "Fifth grade is going on a field trip," I said in a low voice. "I overheard my mom talking about it yesterday afternoon." My mom just happens to be the principal of our school, so if I'm lucky, and quiet, I can overhear lots of secrets. "Where are we going?" Birdie sounded as excited as I felt. "Not sure. All I know is that it involves a looooong bus ride." I couldn't help bouncing up and down right in the middle of the hallway. A long bus ride meant somewhere awesome and far away, like Detroit or Chicago. "That's so cool about the field trip, but"—she paused—"I get car sick. And bus sick." She smiled, but it was wobbly. Suddenly I remembered what happened when my family took her up to the Tunnel

一群孩子穿着冬衣背着书包从我们身边走过。 我猛地脱下我的绿松石手套。 学校里暖和极了。 我压低声音，身体前倾，低声说出了这个秘密。 “我听不见你说什么。”小鸟也脱下了她的连指手套。 它们是紫色的，上面有银色的漩涡。 这是她典型的朴实无华的艺术气质。 她指着走廊尽头吵吵闹闹的一年级学生。 我走近一些，用手捂住嘴。 “五年级要去实地考察，”我低声说。 “昨天下午我无意中听到我妈妈在谈论这件事。” 我妈妈正好是我们学校的校长，所以如果我运气好，又安静的话，我可以听到很多秘密。 “我们要去哪儿？”小鸟听起来和我一样兴奋。 “不确定。我只知道要坐很长时间的公交车。” 我情不自禁地在走廊中央跳上跳下。 坐长途汽车意味着去一个很棒的地方，比如底特律或芝加哥。 “实地考察真是太酷了，但是”——她顿了顿——“我晕车。 还有晕车。”她笑了，但笑得很不稳定。 突然，我想起了家人带她去隧道时发生的事

of Trees in northern Michigan. The road twisted like a pretzel, and Birdie lost her lunch at a spot known as Horseshoe Curve. "You won't get sick if you sit up front," I reminded her. "You're right. And I can take those ginger chews. Do you know when we're going?" "Nope, but I sure hope we go soon." I gestured at the window next to the double doors leading outside. A few flurries fluttered down. "We need to have something fun to look forward to. The month of January is way too long." "Yeah. Unless we get some snow days." "Don't even think about snowstorms right now," I said in a warning voice. We turned into the fifth- grade corridor. "For our field trip, we want perfect weather. Clear blue skies and white puffy cumulus clouds." Cumulus clouds are the kind everyone draws. Especially Birdie. They look like fluffy cotton balls and form due to convection, which means a transfer of heat. You see, I'm all about chemistry. That's because you don't just study it, you experience it. Chemistry is how snowflakes form crystals. Or how your muscles kick a soccer ball. It even explains why

密歇根州北部的树木。 这条路像椒盐卷饼一样扭曲，伯迪在一个叫马蹄铁曲线的地方丢了午餐。 “如果你坐在前面，你不会生病的，”我提醒她。 “你是对的。我可以吃那些姜片。 你知道我们什么时候走吗？”“没有，但我真的希望我们能快点去。” 我指了指通向外面的双扇门旁边的窗户。 几阵小雪飘了下来。 “我们需要一些有趣的东西来期待。 一月份太长了。” “是的。除非碰上下雪天。” “现在连暴风雪的事都不要想。”我用警告的声音说。 我们拐进了五年级的走廊。 “对于我们的实地考察，我们想要完美的天气。 湛蓝的天空和白色蓬松的积云。” 积云是一种人人都喜欢的云。 尤其是小鸟。它们看起来像蓬松的棉球，是由对流形成的，这意味着热量的传递。 你看，我对化学很感兴趣。 那是因为你不只是研究它，你还体验它。 化学反应是雪花形成晶体的过程。 或者你的肌肉如何踢足球。 它甚至解释了为什么

you feel bubbles of happiness when you know you're going on a field trip. Our school, Rosalind Franklin Elementary, is named after one of the most famous chemists that ever lived. Learning about Dr. Franklin is how I got interested in science in the first place. She helped discover DNA, which is like the secret code for life. It carries all the info about how something will look and act, from dandelions to elephants to humans. It even decides whether someone will be prone to car sickness, like Birdie. Pretty much everything except not-alive stuff like water fountains has DNA. "Please don't tell anyone." I took a sip of water from the fountain. "You know, about the field trip." "I won't." Birdie held up her hand. "I swear on the BFF code of honor." I sighed with relief because I knew the secret was safe with Birdie. She never breaks the BFF code of honor. A few minutes later, we settled into our class. At first, I tried my very best to forget about the secret. Only it got hard. I kept on thinking more about our long trip. It had to be a city, and someplace indoors because of the winter weather. Both Chicago and Detroit had silver skyscrapers, and both of them were on the water. Detroit was on the Detroit River with views of Lake St. Clair. And Chicago was on one of

当你知道你要去野外旅行时，你会感到幸福的泡沫。 我们的学校，罗莎琳德·富兰克林小学，是以有史以来最著名的化学家之一命名的。 了解富兰克林博士是我最初对科学产生兴趣的原因。 她帮助发现了DNA，它就像是生命的密码。 它包含了从蒲公英到大象再到人类等事物的外观和行为的所有信息。 它甚至可以决定一个人是否容易晕车，就像小鸟一样。 除了像饮水机这样没有生命的东西，几乎所有东西都有DNA。 “请不要告诉任何人。” 我从喷泉里喝了一口水。 “你知道，关于实地考察的事。” “我不会。”伯蒂举起她的手。 “我以闺蜜的荣誉准则起誓。” 我如释重负地叹了口气，因为我知道伯迪不会泄露这个秘密。 她从不破坏闺蜜的荣誉准则。 几分钟后，我们开始上课。 起初，我尽我最大的努力去忘记这个秘密。 只是它变硬了。我一直在想我们的长途旅行。 那一定是一座城市，而且是一个室内的地方，因为冬天的天气。 芝加哥和底特律都有银色的摩天大楼，而且都建在水上。 底特律坐落在底特律河上，可以看到圣湖。 克莱尔。芝加哥在其中之一

the Great Lakes—Lake Michigan, one of the largest lakes in the world. In my mind, I kept on picturing the jagged skyline and all of that shimmering water. Oh, it was so exciting! Usually, my family goes to Chicago or Detroit just a couple of times a year. In my seat, I tried to stay calm. But that became way too challenging when Mrs. Eberlin said she had a "special announcement" to make right after attendance. Leaning back against her desk, she wore an extra- huge smile. "Class, let's stop the chitchat," she said. "I have an amazing field trip to tell you about." Birdie whipped around in her chair, and we exchanged looks. Oh wow! It seemed like our class trip was happening sooner rather than later. And that was just fine with me. I definitely couldn't wait to find out where we were going.

五大湖——密歇根湖，世界上最大的湖泊之一。 在我的脑海里，我不断描绘着参差不齐的天际线和波光粼粼的水面。 哦，太刺激了！通常，我的家人一年只去芝加哥或底特律几次。 坐在座位上，我努力保持冷静。 但当埃伯林夫人说她在出席仪式后马上要宣布一项“特别声明”时，这就变得太有挑战性了。 她靠在书桌上，脸上挂着大大的笑容。 “同学们，别闲聊了，”她说。 “我有一个很棒的实地考察要告诉你。” 伯迪在椅子上转过身来，我们交换了一下眼色。 哦,哇!看来我们的班级旅行早晚会开始的。 这对我来说很好。 我迫不及待地想知道我们要去哪里。