Description:
Students will understand how preserving the species and natural elements of an ecosystem contributes to the sustainability of that ecosystem. In an ecosystem everything, living and inanimate, has a role. When one element is removed perhaps by erosion, overhunting, habitat destruction, or disease the effect is felt throughout the system. As more elements are removed the system becomes impoverished. Relevant to the following US National Geography Standards:

The World in Spatial Terms
How to use maps and other geographic representations, tools, and technologies to acquire, process, and report information from a spatial perspective

Places and Regions
How culture and experience influence people¹s perceptions of places and regions

Physical Systems
The physical processes that shape the patterns of Earth¹s surface
The characteristics and spatial distribution of ecosystems on Earth¹s surface

Environment and Society
How human actions modify the physical environment

Organization:
National Geographic Society

URL:
http://magma.nationalgeographic.com/education/gaw/biodiv/bio_k4_teacher.html

Cost:
Free over the Internet

Education Level:
Kindergarten-Grade 4

Subject:
Biology
Ecology
Geography

Resource Type:
Internet Site
Curriculum/Instructional Materials

Date Added to teachearth.com:
10/16/00 2:44:01 PM