Snow+Crystals

=Snow Crystals=

Children are introduced to the extraordinary photographs of American Wilson A Bentley who, in the early 1900's, for almost half a century, photographed thousands of snowflakes in his workshop in Vermont.

Students discover the relationship between temperature and humidity in a snow cloud and how this relationship determines crystal shape.

Snow crystal board games are provided for junior pupils as well as instructions for making quilled paper snowflakes.

http://snowflakebentley,com/ (includes a short video) http://www.bentley.sciencebuff.org/index.htm** || //"Quick the first flakes are coming: the couriers of the coming snow storm. Open the skylight and under it place the carefully prepared blackboard, on whose ebony board the most minute form of frozen beauty amy be welcome from cloud-land. The mysteries of the upper air are about to reveal themselves, if our hands are deft and our eyes are quick enough"// - Wilson A. Bentley. (1901)
 * [[image:Bentley-at-Micro-300-dpi.jpg]] || [[image:snowflake_bentley.jpg]]
 * Wilson Bentley Links:


 * [[image:snowfl.jpg width="142" height="163"]] || **//Snowflake Bentley//, by Jacqueline Briggs Martin**

" In the days when farmers worked with ox and sled and cut the dark with lantern light, there lived a boy who loved snow more than anything else in the world..." ||

by W.A.Bentley** ||
 * [[image:P1070330-1.JPG width="178" height="216"]]
 * //Snow Crystals//
 * Bentley's photographs of dendrite-shaped crystals** ||
 * [[image:P1070325-2.JPG width="245" height="168"]]
 * An explanation of crystal shapes** || [[image:P1070328-1.JPG width="153" height="217"]] [[image:P1070327-1.JPG width="191" height="184"]]
 * Snow crystal board games** ||
 * [[image:P1070320-1.JPG width="268" height="181"]]
 * Quilled paper snowflakes** || [[image:P1070337-1.JPG width="175" height="151"]] [[image:quilling.jpg width="169" height="152"]]
 * The quilling technique** ||

**Weblinks:**
http://www.permadi.com/java/spaint/spaint.html/ || http://snowflakes.barceyus.com/ || http://www.its.caltech.edu/~atomis/snowcrystals/ || http://www.papersnowflakes.com/science0.html || Quilling shapes and patterns: http://www.wittyliving.com/crafts/quilling/basic_shapes.html ||
 * [[image:kalidescope.gif width="89" height="82"]] || Kaleidoscope snowflake painter:
 * [[image:papersnowflake.gif width="89" height="82"]] || Cut a paper snowflake with online scissors:
 * [[image:Copy_of_s39.jpg width="91" height="87"]] || Everything you want to know about snowflakes and crystals:
 * [[image:concentration.gif width="92" height="85"]] || Heaps of snowflake pictuires for colouring, patterns,stencils,science and games
 * [[image:P1070417-1.JPG width="183" height="271"]] || [[image:P1070424-1.JPG width="281" height="178"]]