Transcript
Today is the first segment of our new Teacher Feature.

"Good morning, Broken Ground School, this is Sharon.

BY: Hi, this is Bryan Yeaton from The Weather Notebook. I'd like to speak with Sue Ann Martin, please.

I'll see if she's available, hold on.

BY: Thank You

SAM: Good Morning, this is Mrs. Martin.

BY: Hi, Sue Ann this is Bryan Yeaton from the Weather Notebook. How are you today?

SAM: Hi, Bryan. I'm fine thank you. How are you?

BY: Very well. So, I guess we're gonna do a little experiment with your class.

SAM: We're ready.

BY: OK, today I figured we could make a cloud.

SAM: OK.

BY: So, before we do that we need some highly technical weather gear.

SAM: Mmm... We'll see what we can do.

BY: First of all you need a two liter soda bottle, a match, and some water.

SAM: We've got those things.

BY: Alright, are you ready to make a cloud?

SAM: We're ready.

BY: Now, what you do is you get some water and you spray it into the bottle. so you have a coating on the inside. Then, you need something called a condensation nucleus which is a particle of smoke or dust that the water can grab on to. That's where the match comes in. So, you light the match, blow it out and throw it into the bottle.

SAM: Alright, I think I'll be doing that part.

BY: You don't want the kids doing that.

SAM: Definitely not.

BY: That way you get some smoke in there that the water can really grab on to and bind to. And then you seal the bottle with the cap and then you need to decrease the temperature. We actually do that by increasing the temperature first by bending the bottle over the table so the molecules are all squished together and it becomes hotter and then we let the bottle go and it gets cooler.

SAM: Great, OK.

BY: So, after you let go you can see the cloud inside the bottle and then you unscrew the cap and squeeze the bottle and let some of that cloud squirt out into the classroom.

SAM: Oh, the kids are gonna love it!

BY: Well, we'll check back with you soon a see how the experiment went.

SAM: OK, sounds good. We'll let you know how it goes.

BY: And also, in case you forget all these instructions, we're gonna post them on our website for everyone.

SAM: Can you give me that website?

BY: Sure, it's weathernotebook.org.

The Weather Notebook is a production of the Mount Washington Observatory. Our show is supported by the National Science Foundation.

Experiment | Meet the Class | Listen in RealAudio

 

Mount Washington Observatory	National Oceanic and Atmospheric Administration	Subaru of America	National Science Foundation