Re: pinhole Re: Moon activities

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From: pauld@exploratorium.edu
Date: Mon Sep 16 2002 - 10:44:22 PDT 

Message-Id: <200209161744.g8GHiGi11601@isaac.exploratorium.edu>
From: pauld@exploratorium.edu
Subject: Re: pinhole Re: Moon activities
Date: Mon, 16 Sep 2002 10:44:16 US/Pacific

Hi Gail

I use table salt instead of flour. It makes better craters.
I simply drop a 1 cm diameter ball bearing or lead fishing weight about a meter
into a 10 cm deep layer of salt covered with a dusting of chocolate powder.

I use plant trays to hold the salt.

Paul D

> Hi Jeff,
>
> The space grant site at the University of Hawaii website has some fun
> activities on the moon. My favorite is measuring impact craters in a moon
> of floor and chocolate power. Here is the web site. There are also some
> great photos of the moon with lat/long lines/
> Hope this helps.
>
> http://www.spacegrant.hawaii.edu/class_acts/index.html
>
>
> Aloha Gail
>
>
>
>
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