The students will learn about the changing environment through study and observation. They will reflect on these changes in the environment and create their own landscape and habitat. This is the second lesson in "Observing connections," a series of three in which students are creating art based on their observations.

This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction.

Matter is made of particles too small to be seen. But if we can't see these particles, how do we know they exist? In this lesson, students will plan and carry out investigations with air and simple solutions to provide evidence that all types of matter are made of tiny particles that are invisible to the human eye. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

The purpose of this resource is to help students understand the connection between remote sensing, computer imagery, and land cover assessment. Students translate their maps created in the beginning activity into digital code and exchange the digitized versions of their maps with students in another school.

The purpose of this resource is to familiarize students with the importance of perspective and various scales of remotely sensed data. Students create a 3-D model of an area and develop a classification system for the landforms in their model. The maps can then be used to answer certain questions about the environment.

The purpose of this resource is to familiarize students with modeling as it relates to remote sensing and digitized images. Students will use the symbolic map created in the beginning activity to produce a digitized image and begin to see why ground verification of satellite data is necessary.

This video adapted from KTOO explores the impact of oil contamination on the herring population of Prince William Sound, Alaska, in 1999, 10 years after the Exxon Valdez oil spill.

This video segment adapted from NOVA follows the clean-up effort after the 1989 Exxon Valdez oil spill off the coast of Alaska. Also featured is a marsh where an oil spill occurred 20 years earlier; analysis suggests that environmental damage may last for decades.

In this video segment adapted from the Yukon River Panel, visit fishing communities along the Yukon River and see how Alaska Native peoples exercise stewardship of salmon to ensure that it remains a central food source and cultural touchstone.

The resource is made available by the UNESCO to achieve its mandate of sustainable developmental goal by year 2030.

The purpose of this resource is to observe seasonal migration patterns, feeding habits, and nesting behavior of Ruby-throated Hummingbirds (Archilochus colubris) in North and Central America. All students will learn about hummingbird natural history and ecology. Students will learn how to identify and age male and female Ruby-throated Hummingbirds and to observe migration and feeding behavior. Students will learn how to make connections among hummingbird behavior and weather, climate, food availability, seasonality, photoperiod (day length), and other environmental factors.

Students will determine the difference between balanced and unbalanced forces through an experiment. The experiment consists of a student-created scaled snow sled model going down a teacher-created ramp. Students will plan to change one variable, collect data, and chart the data graphically. Students will change a variable such as: number of students riding the snow sled, size of the child (children) riding the snow sled, direction, position on the hill the snow sled is released, position of children on the sled (sitting, standing, laying), friction caused by materials that makes up the sled, and air resistance caused by an object such as a parachute. Students will collect and chart data of each experiment graphically in order to determine the longest snow sled ride. This lesson results from the ALEX Resource Gap Project.

A 21 part video tutorial of Organic Chemistry II given by Professor Kevin Shea of Smith College

A 37 part video tutorial of Organic Chemistry I, given by Professor Kevin Shea of Smith College

Against the backdrop of the devastating 1930's Dust Bowl, this video segment adapted from Interactive NOVA profiles an organic farmer and the techniques he uses to conserve topsoil.

Students will observe, measure, sort, and examine (shapes and textures)of leaves individually, in groups, and in relationship to the entire plant.

This video segment adapted from NOVA explains the origin of the elements and how scientists use unique element profiles to identify supernova types.

This video segment adapted from NOVA follows the Apollo 15 astronauts as they collect samples of ancient rock from the Moon's crust, whose discovery helps lead to a radical new theory about the Moon's origin.

Our Coast, Our Future (OCOF) is a collaborative, user-driven project focused on providing coastal California resource managers and land use planners locally relevant, online maps and tools to help understand, visualize, and anticipate vulnerabilities to sea level rise and storms.