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Friday, February 25

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Monday, February 21

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Saturday, February 12

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Tuesday, January 4

  1. page Experiment edited Date of Entry: The 28th of December 2010 Person present to preform and record: Shannon Cattie En…
    Date of Entry: The 28th of December 2010
    Person present to preform and record: Shannon Cattie
    Environmental conditions of room or area of experimentation: my kitchen, room temperature
    Qualitative data during experiment:
    Control:
    · 0 minutes (0 sec)
    o In the first few seconds, a drop off immediately began to form. This kept forming throughout the five minutes.
    · 5 minutes (300 sec)
    o The drop is still continuing to form.
    · 10 minutes (600 sec)
    o Some sand has begun to float on the surface of the water and on the tub above the water. The water has soaked through all of the sand and dampened it by this point. The board has also caught a bit of sand from the water.
    · 15 minutes (900 sec)
    o The sand is continuing to collect on the board and sides of the tube. The sand has scattered across the floor of the “beach.”
    · 20 minutes (1200 sec)
    o The above sand movement has stayed the same and continued on the same course as it did at the 15 minute mark.
    · 25 minutes (1500 sec)
    o The sand has continued to form along the side and bottom of the tub along with the board. It is continuing with how it has formed before.
    · 30 minutes (1800 sec)
    o A lot of sand is on the board now and the water is very murky. The lay out of the sand has many curves and hills.
    Jetty 1:
    0 minutes (0 sec)
    I have placed the sand, water, and rocks into the tub. The jetty is 41 cm long and 13 cm from the shoreline.
    5 minutes (300 sec)
    The sand had a “hollow” spot behind the jetty, like quick sand. I discovered this by placing the ruler into the sand to evaluate the slope. The slope is steady, there is no drop off. The sand has made a dent that makes a curve from the jetty to the outer tub.
    10 minutes (600 sec)
    The process is continuing from the 5 minute mark.
    15 minutes (900 sec)
    The sand has formed on the sides of the tub.
    20 minutes (1200 sec)
    The bulge of the left side has spread. The drop of each side has become more ridged. The sand has traveled out to the opposite sides of the jetty.
    25 minutes (1500 sec)
    The process from the 20 minute mark has continued.
    30 minutes (1800 sec)
    Holes have formed around the rocks. More are seen on the left side than the right.
    Jetty 2:
    0 minutes (0 sec)
    The jetty is a total of 44 cm long and 15 cm is immersed in the water.
    5 minutes (300 sec)
    The water has created a “U-like” shape on shore which has made a small drop off.
    10 minutes (600 sec)
    The drop off has kept forming, not deeper, but more defined.
    15 minutes (900 sec)
    Holes have formed around the edge of the rocks on both sides. The on-shore drop off has become very defined.
    20 minutes (1200 sec)
    The on-shore drop off has kept following the path it has been taking.
    25 minutes (1500 sec)
    The process is continuing as before.
    30 minutes (1800 sec)
    The on-shore drop off has been defined. The holes around the rocks are very noticeable.
    Quantitative Data:
    Control:
    Contains: 5.6 liters of sand and 5.6 liters of water
    0 minutes (0 sec)
    Slope of sand: 6/39 (2/13) cm
    Distance sand has traveled: 0 cm
    5 minutes (300 sec)
    Slope of sand: 5.5/39 cm
    Distance sand has traveled: 0 cm
    10 minutes (600 sec)
    Slope of sand: 5.25/39 cm
    Distance sand has traveled: -1 cm
    15 minutes (900 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: -1 cm
    20 minutes (1200 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: -1 cm
    25 minutes (1500 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: -1 cm
    30 minutes (1800 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: -1 cm
    Jetty 1
    Contains 5.6 liters of sand and 5.6 liters of water
    0 minutes (0 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 0 cm
    5 minutes (300 sec)
    Slope of sand: 4.5/39 cm
    Distance sand has traveled: 4 cm
    10 minutes (600 sec)
    Slope of sand: 4.5/39 cm
    Distance sand has traveled: 7 cm
    15 minutes (900 sec)
    Slope of sand: 4.5/39 cm
    Distance sand has traveled: 7 cm
    20 minutes (1200 sec)
    Slope of sand: 4.5/39 cm
    Distance sand has traveled: 9 cm
    25 minutes (1500 sec)
    Slope of sand: 4.5/39 cm
    Distance sand has traveled: 10 cm
    30 minutes (1800 sec)
    Slope of sand: 4.5/39 cm
    Distance sand has traveled: 10 cm
    Total Distance Traveled: 10 cm from starting shore
    Jetty 2
    Contains 5.6 liters of sand and 5.6 liters of water
    0 minutes (0 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 0 cm
    5 minutes (300 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 5 cm
    10 minutes (600 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 7 cm
    15 minutes (900 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 8 cm
    20 minutes (1200 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 9 cm
    25 minutes (1500 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 9 cm
    30 minutes (1800 sec)
    Slope of sand: 5/39 cm
    Distance sand has traveled: 9 cm
    Total Distance Traveled: 9 cm from starting shore

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    6:41 pm

Sunday, October 31

  1. page home edited Student Research Plan Name Shannon Cattie Period 2 Proposed title (subject to change): Jetties:…
    Student Research Plan
    Name Shannon Cattie Period 2
    Proposed title (subject to change):
    Jetties: Help or Hurt?
    Problem to be posed or question asked:
    Do the Jetties at the beach actually help keep the sand on the beach, or do they allow it to be sucked out to sea?
    My hypothesis or hypotheses:
    If the beach has a jetty, then it will lose more sand.
    Materials I will supply:
    I will supply a beach (sand, water, wave generator, and tub to hold it in) and the jetty (rocks).
    Materials to be supplied by Mr. Cushing (think of the equipment you will need):
    I do not think that I will need to use any supplies from you.
    Materials from other sources (explain):
    None
    List all chemicals that will be used along with any special handling, storage or disposal:
    There will be no chemicals used in this project.
    Planned procedure:
    1. Create three identical beaches. Each beach will have the same amount of sand that reaches to the same point in the container. Also, each beach will have the same amount of water and a wave generator for each. The wave generator will be on the same power for each. There will be only one difference between the beaches, two will have a jetties and the other will not.
    2. Over a course of two weeks, watch where the sand goes, or doesn’t go. Each night at the same time and place, take a picture to show the difference of the sand progression.
    3. After two weeks, check the results and see if the jetty actually kept the sand in.
    What is your independent variable?
    My independent variable is the jetty.
    What is your dependent variable?
    My dependent variable is the erosion.
    What is your control?
    My control is the beach without the jetty.
    What are your Constants?
    My constants are the amount of sand and water, and the power of the wave generator.
    Please explain the planned timing of your experiment – how long do you expect it to take and when you will work on it.
    I believe each experiment should take about two weeks to fully let the sand situate. That would mean that it would take about a month to complete the project, since I should do the experiment three times to make sure the information is correct. I will work on it after school at my house where the beaches will be located.
    Please cite at least five references you have consulted while conducting preliminary research.
    A little about jetties: http://www.britannica.com/EBchecked/topic/303301/jetty
    More about jetties and how they are made (chapter 2) : http://books.google.com/books?id=5bwMO6SOlT4C&pg=PA3&lpg=PA3&dq=how+are+stone+jetties+made&source=bl&ots=4P864r5cWE&sig=p0lP-gjFAuXypp2hcn57DtFSDJ4&hl=en&ei=n5uzTOKtKsWBlAehvIDlDw&sa=X&oi=book_result&ct=result&resnum=4&ved=0CBwQ6AEwAw#v=onepage&q=how%20are%20stone%20jetties%20made&f=false
    Beach erosion: http://www.scientificamerican.com/article.cfm?id=what-causes-beach-erosion
    More about beach erosion: http://oceanworld.tamu.edu/resources/oceanography-book/coastalerosion.htm
    About waves and their effects on beaches: http://oceanworld.tamu.edu/resources/oceanography-book/beachprocesses.htm

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    11:14 am

Wednesday, September 22

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