Today we had block schedule and 1st and 3rd period classes went to Johnston's Mill Preserve on New Hope Creek. We took a survey of stream invertebrates, gathered water samples for testing, took air and water temperatures, measured pH and explored around the site of the old mill. Thursday when we are back in class we will analyze our results and see if we can determine the overall health of the stream.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.