This chapter describes the technique of preparing latitude-longitude based data so that it can be imported into a geographic information system (GIS). It describes the steps to create a map to display data and guides users through some basic geographic analyses. The focus of the chapter?s case study is earthquake prediction. Users download and format near real-time and historical earthquake data from ... Full description.

Virtual Dating teaching package contain exercises, questions and interactive diagrams describing absolute dating techniques used in geology. These interactive (Flash) online exercises that help students to use and understand decay curves. All questions must be answered correctly before the student can move on to the next set. Users will also find Virtual Dating Isochron and Virtual Dating Demonstration ... Full description.

This is an exercise based on the geologic hazard of land subsidence in areas of karst terrain. A brief introduction is given to ground water, the development of karst, and the resulting collapse features due to the lowering of the water table. Photos and an animation support the discussion. Users are directed to print out a question sheet that is intended to guide exploration of the Edwards Aquifer ... Full description.

In this lesson, students will collect and graph data on air temperature, relative humidity, and dew point to observe why these variables change (or do not change) during the day. Graphs are constructed by using free downloadable software (WxScope). By making observations of qualitative and quantitative changes in these variables with time, they will understand the advantages of using dewpoint temperature ... Full description.

The Ramsar Wetlands Data Gateway is a database containing information on protected international wetlands. In this activity, users search the database to find a wetland that they are interested in helping to protect. Using the database search capabilities, users select various wetland characteristics and generate a report on the sites that meet their search criteria. Then, they access an interactive ... Full description.

This lesson provides an overview of basic atomic structure and the concept of radioactive decay. Topics include the particles that make up an atom, binding forces, and the concept of isotopes. There is also discussion of decay methods and half-life versus activity. The lesson includes an activity in which students use online applets to investigate the half-life and activity of selected isotopes and ... Full description.

This site contains a series of visualizations of the sun, moon and Earth System and how they relate to the changing face of the moon. Animations are in the form of Java applets, forms for field observation of the moon, and a collection of exercises and PDF versions of background material. There are practice questions and quizzes that discuss the animations. Full description.

This lesson plan is part of the Center for Educational Resources (CERES), a series of web-based astronomy lessons created by a team of master teachers, university faculty, and NASA researchers. In this lesson, students gain a deeper understanding of cosmology by gathering evidence for the Big Bang theory. They explore the Hubble Law and create a model of the expanding universe. This lesson contains ... Full description.

This site contains a series of interactive web exercises to practice contouring. There are also explanations of what contouring and common isopleths are. The exercises involve contouring basics; working with real data, weather maps and ocean maps; and contouring potential temperatures in the Mediterranean. Full description.

In this lesson students learn that degrees of biological relationship can be inferred from comparisons of selected molecules. Students are guided through a process in which three questions are addressed by retrieving beta hemoglobin sequences from online databases. They then use online tools to compare those sequences in student-selected animals. The questions addressed are: whether bats are birds ... Full description.