PBS
Pbs: Scientific American Frontiers: Shell Game
A companion to a PBS program, this Jeopardy-style game test students as they identify the characteristics of mollusks.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: La Clasificacion De Los Organismo
This unit will describe the five kingdoms and their main characteristics. It includes 20 interactive activities.
Yale University
Yale New Haven Teachers Institute: Animal Kingdom
Background information about all of the classes of the animal kingdom, followed by four short lesson plan outlines.