Tuesday, July 12, 2011

oysters

We found out that oysters fillter the water.Also we found that there are two good fillters. the two best are coffee fillters and gravel.
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1 comment:

  1. VISTA DivisionJuly 13, 2011 at 9:36 AM

    How can the information that oysters filter water help us with a solution? Is there a way we can use the oysters to help clean the bay?

    Now that you have found that coffee filters and gravel are the best filters, how can we use these materials to build a filter for the bay?

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