The purpose of this resource is to develop familiarity with interactions among the major components of the Earth system at the global scale. Students brainstorm about the nature of connections between their region and others, across oceans and on different continents. On a black-line map of the world, they trace possible pathways of water and wind currents from their part of the continent to other ... Full description.

The purpose of this resource is to show how graphs of GLOBE data over time show the interconnectedness of Earth's system components at the local level. Students visit a study site, where they observe and recall their existing knowledge of air, water, soil, and living things to make a list of interconnections among the four Earth system components. They make predictions about the effects of a change ... Full description.

The purpose of this resource is to develop the best possible representation of the study site as a system. Students visit a study site, where they observe and recall their existing knowledge of air, water, soil, and living things to make a list of interconnections among the four Earth system components. They make predictions about the effects of a change in a system, inferring ways these changes affect ... Full description.

This lesson allows students to explore the importance of weather prediction and the Internet's role in changing the way weather is reported. By participating in an Internet scavenger hunt, students will come to a greater appreciation of the role Internet weather prediction plays in their own lives as well as the lives of people all over the world. Full description.

As part of this lesson plan, students will be asked to read a news article and to construct and explain theories for the decline of the water level of the Great Lakes. They should be able to locate the Great Lakes on a map, compare them to lakes in other parts of the world, hypothesize what might happen in the short term if global temperatures continue to rise, and to consider these seemingly contradictory ... Full description.

The Antarctic Meteorological Research Center provides recent and archived imagery of icebergs, including movies. Icebergs from the Ross, Ronne, and Larsen ice shelves are pictured. Links to a webcam, a Frequently Asked Questions page, and other sites providing pictures and information about icebergs are also provided. Full description.

Discovering Plate Boundaries is based on 5 world maps containing earthquake, volcano, topography, satellite gravity, and seafloor age data. The novel aspect of the exercise is the "jigsaw" manner in which student groups access the maps and use them to discover, classify, and describe plate boundary types. The exercise is based only on observation and description, which makes it useful at a wide variety ... Full description.

The purpose of this activity is to measure the aerosol optical thickness of the atmosphere (how much of the sun's light is scattered or absorbed by particles suspended in the air). Students point a GLOBE sun photometer at the sun and record the largest voltage reading they obtain on a digital voltmeter connected to the photometer. Students observe sky conditions near the sun, perform the Cloud, Optional ... Full description.

The purpose of this activity is to introduce students to the concept of relative air mass and demonstrate how solar elevation angle affects the intensity of sunlight that reaches an observer on the ground. Students work in teams to calculate air mass using simple geometry. Teacher background materials are included. Full description.

'The purpose of the resource is to meaure the alkalinity of a water sample. Students will use an alkalinity kit to measure the alkalinity in the water at their hydrology site. The exact procedure depends on the instructions in the alkalinity kit used. Full description.