How should I shower? part of Activities
Margaret Sullivan
In this activity, students will investigate the questions: What are the benefits/costs of 3 varieties of shower head types: standard, low flow, massage spray? Which would be best for a homeowner? For the university dorms?

Fitting and Estimating Rates of Change in the Functions Underlying Earth's Bio-Development Over Time part of Activities
Alan Ableson; Jennifer Bready
What is happening in our world? How has the temperature changed? Have oxygen and carbon dioxide levels changed? How does this effect biodiversity? In this lab, we will investigate the changes in these four variables over various time periods to see how they relate.

Who Goes There? Estimating Ocean Populations in Chincoteague Bay part of Activities
Maria Hernandez; Itnuit Janovitz-Freireich
In this activity students use data to: rank species on the food chain, compute energy flow ratios and estimate fish populations in the Chincoteague Bay. Students also discuss the impact of the ecosystem and humans on this population, with an extension activity calculating the biodiversity of the system.