In this activity students will interpret graphs comparing large predatory fish populations to total fish catch per year for the Atlantic, Pacific, and Indian Oceans.

In this lesson, students will use a simulation activity to illustrate how predator-prey and competitive interactions affect population sizes. After collecting data throughout the simulation, students will create a graph and then analyze the graph to predict the populations for several more generations.

In this lab exercise, students relate large-scale features on Earth's surface to lithospheric plates, the underlying asthenosphere, earthquakes, and volcanoes. After creating a cross section showing elevation using GeoMapApp, students add additional features by hand.

In this lab activity, students will use the flame test to visually determine the identity of an unknown metal or metalloid ion based on the characteristic color the salt turns the flame of a bunsen burner. The emission spectra can be used to differentiate between some elements.

In this chapter, students will take on the role of land-use planner in Baker County, Florida. They will use My World GIS tools in order to determine the best location for issuing a fifty-acre development permit. This site-based, problem-based case is situated near the town of Macclenny, in Baker County, Florida. This site was chosen because the area is undergoing urban sprawl (exurban development) from neighboring Jacksonville, Florida. This chapter provides the user with a model for learning how to conduct geographic information system (GIS) analysis on land-use, wetland, and political geography datasets.

In this lesson, students explore questions related to wolf populations. Do the ecological relationships of predator and prey populations, specifically gray wolf and elk, warrant a return to hunting of the gray wolf? What are the economic issues surrounding the hunting of wolves, such as effect on ranchers, hunters, and eco-tourism? Can humans and wolf populations co-exist?

In this WebQuest, students will learn about the microorganisms that live in Atlantic White Cedar Swamp habitats. Then they will combine creative writing skills and biology knowledge to bring these microbes to life. Through the art of storytelling, they will bring awareness to Atlantic White Cedar Swamps and increase our understanding of the microbial world.

In this lesson, students will competitively explore reflection using laser pointers and mirrors.

In this activity, students experiment with reflection using plane mirrors through four simple investigation activities.

In this activity, students will work in pairs to make observations about a block of wood in order to deduce the order of events of things that have been done to the block and justify their answers.

In this lesson, students learn about the interconnectedness of land use, water quality, and water resource management. Students are assigned a river front parcel of land to develop, unaware that each parcel is connected to someone else's parcel. Each team presents their development choices to the class and learns that all of the river sections are contiguous, leading to discussions about the effects of development and downstream water quality issues.

In this lab activity, students investigate the effects of different sizes of spools on the effect of torque and moment of inertia. The spools' acceleration is measured. The spools are pulled in different situations, but in all situations, they are slid across the surface. Students submit a lab report with a detailed drawing.

In this lesson, students will first determine and then create environment(s) for seed(s) to grow. Students will work with a partner to choose seeds and materials for planting and caring for them. Students will monitor their seeds/plants daily, recording changes in their science notebooks. At the conclusion of the lesson, students will prepare a poster to share their findings with their classmates.

In this lesson, students will investigate forest biodiversity in several plots in Maine and consider the environmental factors that contribute to tree species diversity. The lesson begins with a simple statistical analysis using Microsoft Excel and ends with a comparative analysis between forests in different regions of Maine using My World GIS(TM). Students will learn how to import, symbolize, and investigate biodiversity forest data (e.g., tree species) with the geographic information system, My World GIS(TM).

In this lesson, students will learn to measure land use change over time. After downloading and comparing Synthetic Aperture Radar (SAR) satellite images of the Amazon rainforest in Brazil for 1994, 1995, and 1996, students will use ImageJ, a public domain image analysis program, to identify forested and deforested land. Next, they will measure and compare the amounts of each. As a final product, they will create and interpret a color-coded image showing the oldest to most recently deforested areas for the three-year period.

In this classroom activity, students will discuss and use knowledge of energy to solve a challenge of getting the longest roll time on a foam track.

In this activity, students will collect and examine aquatic snails. They will identify the parts of a snail as well as determine the number of species present in the environment. Students will collect, mark, return to the water and recollect snails in order to collect data that will allow students to make an estimation of the snail population.

In this unit students will learn about the role of soil respiration in transferring carbon from the soil to the atmosphere, the possible impact of a warming climate on permafrost, and how to identify any feedbacks between a thawing permafrost and the carbon cycle.

In activity Part A, students will learn about soil composition, decomposition and soil respiration. Students will also design and carry out a laboratory experiment on how soil respiration rates might be influenced by one of the following climate-related variables - temperature, soil moisture, soil nutrients, soil fertility, and soil type.

In activity Part B, students will use videos and readings to explore a very special soil with an interesting past and an uncertain future—the permafrost.