```Bubbles: Science or Fun?Paula Z. Jones                  Charles Brownell                                6741 S. Michigan Avenue                                Chicago IL 60637                                (312)535-3030Objective:This lesson is designed for an intermediate grade level.After blowing bubbles, students will be able to test the effect of four differently shape wands and three geometric figures in a bubble mixture. Hypothesis:Does a bubble always form a sphere?Materials Needed:Dawn dishwashing liquid, cups, water, yarn, scissors, pipecleaners, string, straws, trays, and a large container.                            BUBBLE  MAKERS
INDIVIDUAL WANDS

Bend pipecleaners to form a circle, square, heart, and triangle.

RECTANGULAR FRAME

Materials: two standard drinking straws; a piece of cotton string 11/2m long.
Procedure: Feed the string through both straws and tie a knot.

TETRAHEDRON

Materials: Three standard drinking straws; three half-size straws; and nine
pipecleaners.  Procedure: Twist two pipecleaners together to make a pipecleaner
that is somewhat longer than a standard drinking straw; repeat twice.  Put three
long pipe cleaners together and twist them together at the top.  Slip three
standard drinking straws onto the pipecleaners; bend the pipecleaners at the
bottom to form feet.  Insert three standard pipecleaners through three half-size
straws.  Make a triangle with them by twisting their corners together.  Twist
base and top together at corners.

CUBE

Materials:  Six standard drinking straws, each cut in half and twelve
pipecleaners.  Procedure: Put three of the pipecleaners together and twist them
tightly at one end.  Make four complete sets.  Slip half-straws onto the
pipecleaner; bend the pipecleaner to form feet.  Make each set look like the
capital letter T.  Use two sets to form a square with two extended sides.
Repeat the procedure with the other two sets.  Make one square bottom of the
cube by twisting up the extended straws; make the other square the top by
twisting the down the extended straws.  Fit the top to the bottom, twisting all
corners.

Strategy:Cooperative Learning          1. Each student receives 4 pipecleaners, a straw, and a cup.2. Make a circle, square, heart, and triangle with a pipecleaner.3. Cover the bottom of the cup with Dawn dishwashing liquid.4. Fill the cup with a 1/2 cup of water.5. Blow bubbles indoors and outdoors.6. Record results on Bubbleology worksheet.7. Form three groups.8. Build a rectangular frame, tetrahedron, and a cube.9. Record results on Bubbleology worksheet.                      Bubbleology  Worksheet

WAND         PREDICT     INSIDE    OUTSIDE      DRAW SHAPE       COMMENTS
SHAPE        SHAPE       SHAPE     SHAPE
|          |          |            |                |
CIRCLE      |          |          |            |                |
|          |          |            |                |
SQUARE      |          |          |            |                |
|          |          |            |                |
HEART       |          |          |            |                |
|          |          |            |                |
TRIANGLE    |          |          |            |                |
|          |          |            |                |
STRAW       |          |          |            |                |
|          |          |            |                |
PIPE        |          |          |            |                |
CLEANER    |          |          |            |                |
|          |          |            |                |
RECTANGULAR |          |          |            |                |
FORM       |          |          |            |                |
|          |          |            |                |
TETRAHEDRON |          |          |            |                |
|          |          |            |                |
CUBE        |          |          |            |                |
|          |          |            |                |

Performance Assessment:Students are evaluated by completing the bubbleology worksheet.  This assignment is graded as a pass or fail lab in class assignment.  Conclusion:Regardless of the shape of the wand, bubbles always form spheres.Reference:Science and Children, May 1986Science Scope, October 1988AIMS Education Foundation, 1988```