9 A DEMONSTRATION

A DEMONSTRATION CHAPTER 9 Mom cleared off the kitchen counter. "Can you grab two bowls that are the same size and a measuring cup, Zoey?" Mom said the best way to explain what salt does to plants was to do a science demo (that's short for demonstration). I set the bowls and measuring cup

第九章妈妈清理了厨房的柜台。 “佐伊，你能拿两个同样大小的碗和一个量杯吗？”妈妈说，要解释盐对植物的影响，最好的方法是做一个科学演示（这是示范的缩写）。 我把碗和量杯摆好

next to our saltshaker, and Mom brought several thin circles she'd sliced from a potato. They looked like weirdly flat and juicy potato chips. Mom cleared her throat. "OK, so let's see what happens when we add salt to one potato slice and not another. Remember, when we do an experiment, we always—" "Change one thing! And keep everything else the same!" I interrupted, and Mom laughed. "Exactly, so we're changing..." "Salt! So we should do the same-sized potato slices in each bowl, and add the same amount of

在我们的盐瓶旁边，妈妈拿来了她从土豆上切下来的几个小圆圈。 它们看起来就像扁平多汁的薯片。 妈妈清了清嗓子。“好吧，让我们看看当我们在一片土豆片上加盐而不加另一片会发生什么。 记住，当我们做实验时，我们总是——”“改变一件事！其他一切保持不变！”我打断了她，妈妈笑了。 “没错，所以我们正在改变……” “盐!所以我们应该在每个碗里做同样大小的土豆片，并加入等量的

water to both." "Excellent!" My mom smiled and handed me the measuring cup. The bowls were pretty big, so I decided to add two cups of water to each. Then I chose two thin potato slices that looked identical and put one in each bowl. Mom unscrewed the lid to the saltshaker and handed it to me. "All of it?" I asked. She nodded. I poured all of the salt into just one of the bowls and stirred the water, salt, and potato slice together.

两个人都要喝水。”“太好了!”妈妈笑着把量杯递给我。 碗都很大，所以我决定给每个碗加两杯水。 然后我选了两片看起来一模一样的薄土豆片，每个碗里放一片。 妈妈拧开盐瓶的盖子，递给我。 “全部？”我问。她点了点头。 我把所有的盐都倒进一个碗里，把水、盐和土豆片搅拌在一起。

"Are you sure about this?" I asked, looking into the bowl. "It's just a slice of potato, not a plant." A catnip plant and a potato slice seemed pretty different to me. So maybe the catnip plants would be just fine. "In this demo, the slice represents the whole plant. So even though the potato slice is just a part of a potato plant, it'll show you what all the parts of any plant would do in this much salty water." Oh. Well... maybe the potato slice wouldn't change much? I hoped. I really wanted the catnip plants to be fine. Once the caterfly eggs hatched, they'd be hungry for those leaves! Mom set a timer for thirty minutes. "Now we wait."

“你确定吗？”我看着碗里问道。 “这只是一片土豆，不是一棵植物。” 在我看来，一株猫薄荷和一片土豆片是完全不同的。 所以也许猫薄荷植物会很好。 “在这个演示中，切片代表了整个工厂。 所以，即使马铃薯片只是马铃薯植物的一部分，它也会向你展示任何植物的所有部分在这么多盐水中的作用。” 哦。嗯…也许土豆片不会有太大变化？ 我希望。我真的很希望猫薄荷没事。 一旦毛毛虫卵孵化出来，它们就会渴望这些叶子！妈妈设了一个30分钟的计时器。 “现在我们等着。”