Something is Askew at Mammoth Cave National Park part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Geology of National Parks:Examples
Module by: Amie O. West, University of South Florida Cover Page by: Amie O. West, University of South Florida
Spreadsheets Across the Curriculum/Geology of National Parks module. Students use the geometric mean and multiplicative standard deviation to examine the right-skewed distribution of nutrient concentrations in water-quality data at Mammoth Cave National Park.

How Much Water Do I Use? part of Process of Science:Examples
Dave Gosselin, University of Nebraska at Lincoln
This activity provides an opportunity for the student to collect data on their individual water use to set the stage for a unit on water resources.

Duckweed Bioassay part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Lindsey Molstad
This activity is a bioassay lab where students tested the effect of an environmental toxin (fertilizer) on the growth rate of Duckweed.

Stream Study: An Investigation of an Aquatic Ecosystem part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Robert Kaukola, GFW Middle School, Fairfax, MN, based on Rivers from the Bell Museum
This activity is a field study where students gather data on a stream based upon their protocol. They will correlate their data with another group and present their results to the class. They will develop and defend in class a new experimental question for a spring study.

Investigating Acid Rain: The Affect of Acid on Seed Germination part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Barb Tvinnereim Jackson County Central High School Jackson, MN
This activity is a self-created lab investigation where students gather data on acid and its affects on seed germination.

Testing alkalinity in water systems (simulation) part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Juliet Peterson DeLaSalle High School, Minneapolis, MN Teaching ideas from: Project Wet, Water Education for Teachers as found in: "Healthy Water Healthy People, Field Monitoring Guide "(2003)
This investigation is a laboratory activity in which the alkalinity of 2 types of substrates (carbonate vs. non-carbonate) are compared on the basis of titration. Students will reflect on the relationship of alkalinity and toxic heavy metals.

Water Quality part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Jennifer Krings, Ridgeway Community School, Houston, MN
This is a field investigation in which students test water quality in 2-3 areas using their own testable question.

Investigating Macroinvertebrates: How Clean is Our Lake? part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Joan McKinnon
This 3-part lesson begins with a field activity beside a lake or stream where students collect and identify macro invertebrates. During the second and third portions of the lesson, students conduct research to answer questions that they have regarding the macro invertebrates that they have identified and then based on the types of macro invertebrates found make a general determination of the cleanliness of the lake.

Monitoring pollution in a freshwater environment part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Sheila Sullivan
This inquiry lab is useful for monitoring water pollution in a freshwater system using direct and/or indirect methods.

Macroinvertebrates and Indicators of Water Quality part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Kim Truchan, Winona Senior High based on the Macorinvertebrate Mayhem from Project Wet
This activity is a field investigation where students can go to a body of water and collect the macroinvertebrates there and identify them. Based on what they find, they can assess the water quality by determining the biotic index.