Other
The Domains and Kingdoms of Life
This site is a description of the history behind the 5 Kingdom system suggested by Robert Whittaker. An extensive list of resources is included.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Clasificacion De Los Seres Vivos
All known form of life gathers in large groups, which are called kingdoms. This site provides a thorough overview of the five kingdoms with many illustrations. The lessons contain 15 interactive activities.
Scholastic
Scholastic: Study Jams! Science: Animals: Kingdoms of Life
A playful interactive introducing biology's five animal kingdoms. Watch the video, take a quiz, and review vocabulary.
Orpheus Books
Q Files: Life: Plants
Explore the world of plants and all that encompasses the second biggest kingdom of classification.
Other
Alternative Classifications of Life
The Linnaean system (1758) classified all macroscopic living organisms as either Animals or Plants, based on whether they moved [anima, with a soul] or not. Thus, Fungi were included as plants. With the invention of the microscope and...