CHAPTER 13

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How Do Scientists Think?

You have lost your keys again. You just had them, and you needed to be out the door five minutes ago. The first thing you do is try to remember where you saw them last. Next to the door? You go to the door and then to the kitchen counter, but no luck. Pockets in the last coat you remember wearing? Nope. No one is home but you; they have to be somewhere.

Finally, you retrace your steps all the way out to the garage and find them sitting right where you left them: up on the roof of the car. You must have put them there when you got the last package from the back seat! If you are short, you might never have found ...

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