The GLOBE Cave Protocol Field Guide utilizes existing GLOBE protocols to explore an extreme environment. Caves provide an opportunity to utilize GLOBE protocols to investigate underground environments and compare them to surface environments. Outside the cave, students record elevation, MUC, latitude and longitude, air temperature, relative humidity and air pressure. Inside the cave, students record air temperature, relative humidity and air pressure as well as observe and describe cave features in each room. Students also note evidence of biological activity and human impact. If water is present inside the cave, students record water temperature and pH. Follow up questions are included in the Field Guide.

The purpose of the resource is to introduce students to Landsat images and how to identify the land cover types within those images.

In this activity, students examine a photo and map of Manhattan, New York, to determine the date the photo was taken. The activity provides opportunities for discussing seasons, equinoxes, and the apparent position of the Sun throughout the year. Links to additional information are embedded in the text.

The purpose of this resource is to observe plant green-down and report greendown data to help validate estimates of the end of the plant growing season. Students monitor the change in color of selected leaves of trees, shrubs or grasses.

The purpose of this resource is to observe plant green-up and report data that will be used by scientists to validate satellite estimates of the beginning of the plant growing season. Students monitor budburst and growth of leaves of selected trees, shrubs, or grasses. Species chosen should be native, deciduous, and dominant in your area.

Located in Newport, Oregon, Hatfield Marine Science Center plays an integral role in programs of marine and estuarine research and instruction, as a laboratory facility serving resident scientists, as a base for far-ranging oceanographic studies, and as a classroom for students. Site features information on courses, seminars, facilities, and current research. Education Programs section includes teacher and student resources. Resources applicable to local and distant educators.

In this activity, students investigate how the atmosphere changes with altitude. They will obtain atmospheric data for locations of their choosing using online resources, graph it, and examine it to answer questions about changes in temperature, pressure, humidity, and dewpoint with altitude.

In this activity, students investigate data from Hurricane Ivan, the September 2004 storm that devastated the Caribbean Islands and the Alabama Gulf Coast before looping across Florida and back into the Gulf of Mexico, where it regenerated into a new storm system. They will analyze data on the storm's location, windspeed, and barometric pressure, develop study questions, and map the hurricane's position at selected intervals.

This module discusses the hydrologic cycle and its impacts on the planet Earth. Additionally, the module addresses connections between the hydrologic cycle, climate and the impacts humans have had on the cycle.

The EERC at the University of Bristol has developed an Earthquake Engineering Competition that challenges secondary school students to design and make small scale models of buildings that can withstand strong earthquakes. Provided on the website are tips for model design and construction, load testing advice, and a gallery of models organized by various characteristics.

In this investigation, students locate a round or spherical naturally-occurring rock and take notes about its location and their reasons for selecting it. After measuring the rock and assessing some of its properties, they will answer a series of questions to determine the type of environment that would create a round rock, as well as the different types of weathering and components of the rock's internal structure that might contribute to its shape.

This resource provides guidance on site selection for the GLOBE Atmosphere data collection protocols. Instructions for building an instrument shelter, a snowboard, an ozone measurement station, and a wind direction instrument are included.

In this activity, students identify spirals and other shapes present in nature and discuss at what sizes or scales these shapes exist. Examples include a hurricane, foraminifera, nautilus, and a galaxy. They will discuss the differences and similarities of each of these spirals and investigate the powers of ten that identify the scales at which these different examples exist.

This experiment uses the heating of water to explore the concepts of density and volume. Students learn about the transfer of heat energy within the atmosphere, hydrosphere, and Earth's interior, and connect this transfer to differences in density, which in turn result in motion. As part of the investigation, students will also become familiar with the Celsius and Fahrenheit temperature scales.

In this activity, students organize a set of fossils chronologically and learn to correlate, based on fossil evidence, the stratigraphy of one location with that of an adjacent location. Earth Science Reference Tables are used to identify the epoch of occurrence and the age of each of the fossil specimens. Students will become familiar with the concept of index fossils and understand what makes a good index fossil.

The purpose of the resource is to investigate changes in the major land cover types of Study Sites by examining Landsat satellite images acquired years apart.

The purpose of the resource is to determine the major land cover type at a Land Cover Sample Site.

This exercise was designed to address student misconceptions about why the Moon exhibits phases. Using a sketchbook, digital camera, or flex cam, a student sits at the center of a darkened room illuminated by a single light source in a stationary position. Stools are set up surrounding the student in the center and other students take those positions, always keeping their faces toward the center. The center student sketches or take pictures of the faces at each of the positions. Substituting a sphere (such as a ball) for the students' faces provides an even more vivid illustration of the shadowing of the sphere and connects directly to the rationale for lunar phases.

Students study magnetic field by using a classroom-made magnetometer. They use iron filings to reveal the magnetic field lines and record their observations on a sketch map.