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Oh hello. Hi Bianca. Hi this is Jacob and Matthew. We're trying to solve a stink problem for KSNN.

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So are you the treehouse detectives? That's us. We want to know why we smell certain things.

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Or how our noses work. With more information we might be able to sniff at the problem.

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Everything that smells or has an aroma has microscopic molecules or little particles that come off and drift into the air.

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Once it gets into the air it comes in contact with the nose, it goes inside the nose and then to a very special place

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that's set up just to help you understand what the smell is.

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But how does your brain recognize different smells?

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Depending upon the kind of molecules that come into the nose, the brain will understand what is going on with the smell.

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Now for example, pizza may have five little places in the nose for its identification.

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Whereas perfume may have six or seven and each of those places is very different.

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Do all of us smell the same thing?

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Well we do not know if everybody smells the same smells.

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What we do know is that people can identify things the same.

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Now for example, two children walking into the kitchen may smell something cooking on the stove.

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And we'll know right away for example that their mother is making hot dogs.

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Now what can change that is if one of the children came from the garage

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and had just been watching their daddy cleaning a paintbrush with turpentine

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and all that turpentine smell was in the nose.

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That would change how that person smells.

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I have some questions. What about dogs or other animals?

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Do they have the same nose as we do for sniffing?

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The same nose!

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Well that's a good question.

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You've heard the saying, you've got a nose like a shark.

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Yes.

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I have a friend you may want to visit at the Virginia Marine Science Museum.

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To check out sharks, we'll make the time.