Lentic Ecosystem or Lotic Ecosystem

Lentic Ecosystem or Lotic Ecosystems was created by Cynthia J. O'Hora March 2006.

Special thanks to Dotty Welsh of Mansfield, PA. who generously provided photos from her neck of the Pennsylvania woods! Thanks, as well, to Dr. John E. Farr of Dubois, PA. for his great photos.

Other engaging water related activities

Label this map of Pennsylvania's fresh Waters

Learning about Watersheds online activity 7-12th

Fresh Water in Pennsylvania 4-6th

Precipitation and Population

Math of Fresh Water video project

Drought presentation pbl

The Hydrologic Cycle

Environmental Inquiry - Watersheds

Wetlands - EcoStudy Unit

EcoDilemmas - Investigate, evaluate

Water Words - online vocab puzzle

Pennsylvania Projects

NOAA Learning Objects videos

Stream Ecology

Pennsylvania Groundwater Contaminated By Coal Ash

Green Energy online videos

Johnstown PA 1936 Flood old news reel video on YouTube

Water and Water Quality resources from PSU

Digital Library for Earth System Education - a distributed community effort to improve the quality, quantity, and efficiency of teaching and learning about the Earth system at all levels

Cooperative Wetlands Center @ Penn State


Pathfinder Science - Stream Monitoring

PA Science Assessment Anchors 4th grade

Watershed Atlas of the Manongahela and Allegheny Rivers


Groundwater: A Primer for Pennsylvanians

Enviromapper for water

USGS Real-Time Water Data for Pennsylvania

Water Resources of the United States

Hetch Hetchy and the Sierra Nevada Watershed - Make a similar project for your community

Water Wars problem based learning activity

Wave Machine at PBS Savage Seas

Across Great Lakes region, pact faces different challenges

Great Lakes water compact tests regional unity

Aligned with the Pennsylvania State Academic Standards for:

Ecology and the Environment. Watersheds and Wetlands
4.1. A: Identify various types of water environments · Lotic systems (e.g. creeks, rivers, streams) · Lentic systems (ponds, lakes, swamps)

Reading Writing, Listening and Speaking
1.2. 5, 8, 11 Reading Critically in All Content Areas - A. Read and understand essential content of informational texts and documents in all academic areas.

1.6.5, 8, 11 Speaking and Listening - F. Use media for learning purposes.

1.8.5, 8, 11 Research - B. Locate information using appropriate sources and strategies

More info: "Water: An Endangered Resource," a Penn State Public Broadcasting production

Water Science for Schools - USGS | Report: Pollution impairs miles of Snyder County waterways | Susquehanna Greenway Partnership

CBF Report Identifies Major Sources of Pollution in the Susquehanna River

Lentic Ecosystem
Lotic Ecosystem
Flow to the headwaters
Watershed Activity
Nature Activities

"High quality water is more than the dream of the conservationists, more than a political slogan;
high quality water, in the right quantity
at the right place at the right time,
is essential to health, recreation, and economic growth." - Edmund S. Muskie, U.S. Senator, speech, 1 March 1966

This activity may be used by nonprofit organizations and by individuals for personal use.