Judy Vesel, Principal Investigator and Project Director

Linda Bean-Pardee, Project Designer
Bryce Flynn, Senior Web Designer and Illustrator
Robby Griffin, Web Support Specialist
Topher Hagemeier, Curriculum Developer
Arthur Johnson, Project Evaluator
David Libby, Director of Information Systems
Vanessa Layne, Web Toolsmith
Lisa M. Miller, Senior Web Developer
Matthew O'Toole, Web Consultant
Tara Robillard, Materials Developer and Evaluator
Laura Uhl, Editor

Andrew Allen, Diane Mulcahy, Horace Mann Lab School, Salem, Mass.; Muriel Bergeron, Charlotte Carlson, Sunapee Central Elementary School, Sunapee, N.H.; Julie Blystad, Nancy Osborne, Bertschi School, Seattle, Wash.; Beverly Broadfield, Terry Tolson, Central Elementary School, Warrenton, Va.; Robert Burns, Dan Mitchell, Beatrice Rafferty School, Perry, Maine; Sandy Coe, Roy Moore School, Silt, Colo.;Susan Commoss, The Butler School, Belmont, Mass.; Jonathan Cook, Teryl Russell, Woodley Hills Elementary School, Alexandria, Va.; Joni Cooke, Leeds Central School, Leeds, Maine.; Barbara Costanzo, Nora Guzewich, Sue Hennessy, Jefferson Elementary School, Schenectady, N.Y.; Mary Coughlin, Andre Hoessel, J. L. Mulready School, Hudson, Mass.; Cathy Duffy, Dawn Tobey, Fairbank Elementary School, Fairbank, Iowa; Janet Grey, Cathy Rutledge, Walter T. Moore Elementary School, Tallahassee, Fla.; Robert Gruen, Thomas Russo, Butterfield School, Orange, Mass.; Loretta Haddad, Shelly Hodges, Janice Hogenmuller, Jean Messer, Madeline Rehder, Diane Wacholz, Kate Sullivan Elementary School, Tallahassee, Fla.; Kris Hejny, Southwood Glen Elementary School, Franklin, Wis.; Chandelle Hunt, Riverside Junior High School, New Castle, Colo.; Betty Irvin, David Purnell, Salford Hills School, Harleysville, Pa.; Sylvia Kalmbokas, Fiske School, Lexington, Mass.; Clare O'Connell/Colleen Gorman, Ellen Pratt, Brackett School, Arlington, Mass.; Brian Olinde, Ascension Parish School, Donaldsonville, La.; Rita Queen,Ruth Young, Fletcher Elementary School, Fletcher, N.C.; Barbara Siegel/Kevin Giroux, Laura Tsoi, Hardy School, Arlington, Mass.; Caroline Thom, Sara Waters, Bishop School, Arlington, Mass.; Ron Ziff, Village Community School, New York, N.Y.

Elena Dworkin Wright, Managing Editor

Concetta Brown, Production Designer
Claudette Dawes, Editor
Sarah McAbee, Production Designer
Alyssa Mito Pusey, Editor
Martha MacLeod Sikkema, Production Designer

This unit was developed by TERC and funded in part by the National Science Foundation, Grant ESI-9553592, and the National Geographic Society. All opinions, findings, conclusions, and recommendations expressed herein are those of the authors and do not necessarily reflect the views of the funders. A prior version of the unit was developed by TERC in collaboration with the National Geographic Society and published as the Weather in Action part of the National Geographic Kids Network series.