|
Magic
Stripes Theme Packet Supplies
(Polariscope
for Grade Level K - 7)
| Item |
Supplier
|
Price
|
Yield
(# of Kits) |
Price
/ Packet |
9"
x 50" x 0.03"
Sheet Polarizer
HN22
Cat # 605223 |
Polaroid
Corporation
(800) 343-5000 |
$172.00
/ sheet |
195 |
$0.88 |
3"
x 3" Plastic Bags
Cat # 48304 |
U.S.
Plastics Corp.
(800) 537-9724 |
$10.49
/ Case |
1000 |
$0.01
|
1.2"
x 2.75" Labels
(Avery - White
Address Labels)
Cat # 5360 |
Staples
(716) 424-9333 |
$15.90
/ Box |
2100 |
$0.01 |
8.5"
x 11"
ImageFlow Pro
Transparency Film
Cat # 000985 |
Staples
(716) 424-9333 |
$6.67
/ Pack |
90 |
$0.01
|
| 3M
Mailing Tape |
Wegmans**
(Pittsford)
(716) 586-6680 |
$1.69
/ Roll |
N/A |
$0.01 |
*
A local Grocery Store
Theme
Packet Preparation:
- Cut
the polarizer sheet into 40mm x 40mm squares (two per theme packet
are needed)
- Place
the tape on a full sheet of the transparency in such a way as
to obtain off set layers (up to three layers) repeat until entire
sheet is covered.
- Cut
the transparency at an angle of ~25º on all sides to create
a rectangle where the tape runs from the lower left corner to
the upper edge on a diagonal. Cut the transparency into 35mm x
35mm squares. Click here for detailed
instructions on Transparency Preparation.
- Label
the bag and place 2 polarizers, And one taped Transparency Square
inside. Zip closed.
Theme
Packet use:
- Play
with the polarizers to introduce polarization in white light.
Hold the polarizers together and look at the ceiling light through
them. Rotate one of the polarizers 90º and look at the light
again. One orientation allows no light through. This orientation
is called “crossed”
- Then
show how colors appear when the taped Transparency Square is inserted
between crossed polarizers as students look at the ceiling lights.
Note:
This demo works better if an overhead (OH)
projector is used. Take two large 9” x 9” sheets of polarizer
and place them on the OH projector, separated by 4 plastic cups.
Then throw on some plastic eating utensils.
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