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Book Chapter
Most animals are patterned. While some markings may serve as an advertisement, many appear to function in concealment. Because of the principal way in...
Book Chapter
Modeling Glacial Features With Sand
In this investigation, students make a model of the different erosional features of valley and continental glaciers out of sand and determine their im...
Book Chapter
Aquatic Macroinvertebrate Identification
Everyone is familiar with terrestrial insects such as dragonflies, houseflies, mosquitoes, and beetles, but many of us are unaware that several insect...
Book Chapter
Factors That Affect Eutrophication
In this investigation, the effects of excess nutrients (nitrate and phosphate) on algae will be examined. An excess of these nutrients can lead to eut...
Book Chapter
This investigation consists of two parts, in which students first model the effects of groundwater contamination and then track the flow of the contam...
Book Chapter
Glacial Features of a Watershed
The objective of this investigation is for students to learn how glaciers shaped a watershed. ...
Book Chapter
This investigation gives students the opportunity to view the outside world and bring science into the field. Teaching students how to identify plants...
Book Chapter
Learning how to delineate a wetland using official criteria can be an enlightening experience for students and teachers. The objective of this investi...
Book Chapter
In this investigation, students will select, identify, and test a common plant for allelopathy by extracting the plant’s natural chemicals and measu...
Book Chapter
When humans change the natural topography, certain effects are likely to be seen in a watershed. The transportation of water and sediment increases wh...
Book Chapter
Streamflow, or discharge, is defined by the U.S. Geological Survey (USGS) as the volume of water flowing past a fixed point in a fixed unit of time. T...
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Flood Frequency Analysis for a River
In many watersheds, the frequency of flooding has greatly increased in the past 20 years, mainly due to changes in the hydrology as a result of farmin...
Book Chapter
Comparison of Phosphate Levels in Stream Sediments
Phosphorus is an important nutrient to all life. Unfortunately, when phosphate reaches the soil it is not all used up by the plants. If excess phospha...
Book Chapter
The study of science at the extremes of size often involves creating and testing models of science phenomena. Scientists and engineers often build mod...
Book Chapter
Your World or Mine? Different Perspectives
Is the glass half-empty or half-full? That depends on your perspective. Differences in vantage point or prior knowledge can lead to different interpre...