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    HistoryEdited May 15, 2012 10:56 AM by Thompson Hannah…

    Period 6A CG and HT


    Cassie G. and Hannah T.

    Problem: How many pine cones are under a specific tree branch at any point during the year?

    Hypothesis: If it is winter, then there will be fewer new pine cones on the ground under the tree.

    Materials: string, paint, yard stick, pine cones, tree branch, and a tree

    Procedure:

    1. Choose a branch.

    2. Tie a string around the branch.

    3. Count the number of pine cones within a yard of the branch every week.

    4. Mark the pine cones you have already counted with paint to keep the experiment controlled.

    Conclusion:

    We investigated how the seasons would affect the number of pine cones under our tree. We thought that if it was winter, there would be fewer new pine cones on the ground. We were somewhat right. During early winter/ late fall, there were the most new pine cones on the ground. During late winter, there were the least new pine cones under our tree. For our experiment, we marked each new pine cone we found under our tree with a slash mark in pink marker.



    Results:

    Date Temperature (C) # of old pine cones # of new pine cones total
    10.3.11 24.5 C 0 7 7
    10.11.11 24.9 C 7 2 9
    10.28.11 23 C 9 9 18
    11.15.11 19.9 C 16 6 22
    1.10.12 8.8 C 22 0 22
    3.15.12 26.3 C 22 1 23
    5.11.12 22 C 23 0 23

    Comments

    Harmon Brennan
    Nov 2, 2011

    colorful table

    Bayer Melissa
    Nov 18, 2011

    it's good your doing a selection of pine cones in different areas

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