2011 Science Fair Information packet by xiaopangnv


									             Education through Engineering

                    Science Fair
              Junior High Information Packet

Overview: All Prentice students will be participating in the
Science Fair as part of their science curriculum. K-5 students will
build a building while 6-8 grade students will build bridges. The
structures will be made out of popsicle sticks. The bridges will be
tested for strength capacity during science classes on March 28-
30th. The results of the tests will be on display at Open House on
April 14th.

This year’s science fair process involves the following steps:

Research – Sixth graders have researched bridge types in class.
Seventh and eighth graders have been researching bridges
independently. Rough Draft Due: Friday, Feb. 25th.

Drawing - In order to motivate the students to think before they
start building, students will submit a drawing of their planned
structure. The drawing should be on a blank piece of regular size
paper and drawn with pencil or thin-lined pen. It should be
drawn to scale as much as possible. Plans will not be evaluated
solely based on "artistic quality"; rather, they will be evaluated
based on detail and neatness. As in all things, the student's age
and ability will also be factored in. Due Friday, March 4th.

Structure - Each student will be given a bag of popsicle sticks
and a list of approved resources (see page 4 of this packet).
From these materials, the student is to construct a bridge that
meets certain guidelines. That structure will then be tested for
strength by placing weights on top of the structure.
Due: Tuesday, March 15th

Report - This is the written portion of the Science Fair Project.
          Rough Draft Due: Friday, March 18 th.

Your report will include:
                           a cover or title page
                           a list of materials
                           research of one bridge type (7th and 8th grade only)
                           first drawing of your bridge plan
                           2-4 descriptive paragraphs on how you built your
                           A paragraph or two on why you built the bridge the
                            way you did.
                           A paragraph of your predictions as to what will
                            happen (A rotations: discuss buckling and snapping)
                           A drawing and/or a photograph of
                            your finished building to scale, with
                            scale indicated on the paper.
                           'Acknowledgements - who helped out, and how.
                           Rough drafts and notes

 Test Day - We will be testing the structures on March 28 – 30th.
During the school day, each structure will be placed under an
increasingly heavy load until the structure collapses. Awards will
be given to the students whose structures hold the most weight.
The structures will not only be evaluated based on strength, but
also their creativity and esthetics.

                  Due Dates
      February 25 – Bridge Research Rough Draft Due.
                      (7th and 8th grade only)

      March 4 – Drawing Plan Due

      March 15 – Completed Bridge Due

      March 18 – Rough Draft of Report Due

      March 28-30 – Bridges will be tested during science classes.

      Week of April 4 – Final Report Due

      April 14th – Small group displays at Open House.

           Bridge-Building Rules
Objective: Design a bridge that will hold as much weight as possible
with the resources given. Please follow the guidelines below carefully.

      50 standard 4 ½ inch popsicle sticks (provided)
      standard white glue or yellow wood glue
       NO special glues, plastic cements, epoxies, or other
      string: 5 feet of standard kite string
      size guide (this can be part of your finished structure)
      No other resources may be used.
      Parent involvement in the building process must
       be limited.

Size Rules:
      Span: The bridge span shall be 8 inches. This
       is the distance between the bricks that the
       bridge will be placed upon.
      Length: The total length of the bridge shall
       have a maximum length of 13 inches.
      Width: The width of the structure shall be between 2
       inches and 6 inches. Remember, a 2”x4” board will
       be placed on the center of the bridge for testing.
      Clear Zone: The Clear Zone rectangle attached to
       this packet is the size of the weight that will be placed
       on your bridge. If the rectangle does not fit on the
       center of the bridge, the bridge cannot be tested.
       Structures thinner or wider will be disqualified from the
      Height: There are no height limits, other than
       a clear space shall be provided above the
       center of the bridge.
      Clearance Under the Bridge: The bottom of
       the bridge cannot extend lower than one
       inch. As soon as any part of the bridge
       bends down more than two inches past the
       support, it is considered collapsed.
Other Rules:
 The structure must be able to sit atop the two
  test bricks without falling over. The structure shall
  be able to stand on its own.

 Glue must be used in a "reasonable" amount (i.e. no
  dipping the entire structure in glue).

 Sticks can be cut, sanded, slotted, or have their ends
  flattened off.

 The structure must be built by the student.
  Parents may advise and suggest, or help in
  cutting of sticks if doing so might be dangerous
  to student.

The Test:

    On the test day, the bridge will be placed on 2
bricks that are 8" apart. During testing, the bridge
will be placed on 2 bricks with an 8" gap. A
square flat piece of wood will be placed in the
center of the bridge. Weight will be added on
top of this flat piece of wood until the bridge
collapses (or bends more than 2"). See diagram
below. It will be very important that you leave a 2"
by 4" clear space on the center of your bridge, with
clear space above.

Bridge-Building Helpful Hints

   1. Plan your structure before building. The drawing of            your
      structure is required not as "busy work," but as a way to      plan
      your structure to make sure you have enough sticks. You        may
      also want to tape the structure temporarily together first,    then
      glue it once you are satisfied.

   2. Don't put the building off until the last minute. Glue takes 10
      minutes to set up, and an hour or more to really bond. The best
      way to build your structure is in 20 minute sessions, not a last-
      minute 3 hour marathon.

   3. Glue holds best when put under pressure. Did you know that
      many small pieces of wood glued together and tightly
      clamped can be stronger than a single piece of wood? The
      secret to strength is small amounts of glue and good pressure. If
      you don't have small wood clamps, stacks of heavy books will
      do just as well.

   4. To keep glue from sticking to your work surface, lay a sheet of foil
      under your glued sticks. The foil will peel away when the glue

   5. The rounded edges of the sticks can be sanded flat for tighter
      and stronger seams.

   6. Be careful not to "pretest" your structure to death. Wait until
      March 28th to test your structure, unless you're willing to rebuild
      the whole thing over again.

   7. For students who are motivated to have the strongest structure,
      a box of 500 popsicle sticks will only cost about $3-5 at your
      local craft store. Then they can build and test many models
      and bring the best to school.

   8. And a special note to over-anxious parents: Please let your
      child make the structure independently. Mom and dad can
      buy their own popsicle sticks and build their own buildings
      along side their child. Allow your child to experience their own
      successes and failures. Show your children you believe in them
      by allowing them to do it on their own!

Questions and Answers
 1. "Does my child have to build something?" This project is a
    requirement for their science education for the last trimester.
    Students who do not turn in a project may not receive a
    passing grade in science.

 2.    "My older child can't wait to see his building destroyed, but my
      younger one doesn't want his building crushed. Do all the
      buildings have to be destroyed?" We will give students in
      grades K through 3 the option of whether they want their
      building tested, although we strongly encourage all students
      to participate in the big test. We will take snapshots of the
      buildings before the test so they can remember what they
      looked like. Building a replica of your bridge is another option.

 3.    "The rules say we can only use 50 sticks, but the bag came
      with over 60. Can we use them all?" The bags were purposely
      over packed in case sticks get lost or broken. Many sticks will
      have large holes in them or may be severely warped. The final
      structure should have 50 sticks or fewer. The bridges will be
      weighed on the competition day to ensure that all participants
      used the same amounts.

 4.   "Can we use hot glue or crazy glue?" In a word, no. The only
      acceptable glues are standard white school glue or water-
      based yellow wood glue. Structures made with other types of
      glues will be disqualified from the contest.

 5. "I want to see the testing. Why can't we do it on Thursday
    night?" With approximately 200 students, testing all of their
    structures in a 2-hour time frame would be impossible. Each
    student's structure will be photographed before hand. On the
    night of the open house, we will have a display that
    documents the testing.

Education through Engineering
2011 Science Fair

Student Name: _________________________________

I have read the Science Fair Information packet.

Parent Signature: _______________________________

Education through Engineering
2011 Science Fair

Student Name: _________________________________

I have read the Science Fair Information packet.

Parent Signature: _______________________________

Education through Engineering
2011 Science Fair

Student Name: _________________________________

I have read the Science Fair Information packet.

Parent Signature: _______________________________


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