Learners investigate how worms affect plant growth.  In this biology lesson, students construct a worm ecosystem in a plastic 2 liter bottle and plant a seed in the soil.  They later compare the ecosystems with worms to ones...

Students identify the differences in local soil types and the relationship between soil size and water retention. They are introduced to microenvironmental conditions in ecosystem sustainability.

Sixth graders examine the factors that influence the stability of ecosystems. They construct a miniature ecosystem in a jar that includes plants, small fish, and snails, record the population changes over a period of four weeks, and...

Fifth graders investigate how a pond ecosystem can change into a prairie or grassland ecosystem. They observe a small pond ecosystem in a two liter soda bottle, and examine and record changes over a two-week period of time on a worksheet.

Sixth graders create a TerrAqua column. In this ecosystems lesson, 6th graders build a TerrAqua column to conduct investigations on how living things impact the ecosystem.

Students investigate the biotic and abiotic factors that are found in an aquatic ecosystem. The emphasis is upon the investigation of present an projections of future water quality. Then students visit a local body of water to gather...

Students explore the basic biology of a pest. They identify the four major kinds of insect mouthparts and explain how they work. Students examine the specific mouthparts and how they can limit food resources and in what environment an...

Students define all eight water quality parameters and list at list one source for each of the eight water quality parameters. They determine how each of the eight parameters affect river ecosystems.

Students explore the need for conserving fresh water and understand that it is a limited supply.  In this water consumption lesson students participate in an activity and answer questions. 

Students learn about transect lines through a study of marine debris.  In this marine debris lesson, students calculate the items on a transect line and graph them.  Students complete a category worksheet.