NASA uses satellite instruments to track Earth's subsystems - the atmosphere, lithosphere, hydrosphere, biosphere and cryosphere - to learn how they interact and how they affect climate. This 5-minute video introduces the tools NASA uses to gather... (View More) data about those subsystems, then explains how analysis and visualization of that data can be used to create mathematical models for predicting weather and climate. NASA eClips™ are short, relevant educational video segments. The Real World series of NASA eClips™ connects classroom mathematics to 21st century careers and innovations and are designed to encourage an appreciation for mathematics through real-world problem-solving. (View Less)

Water is essential to Earth's living system, the biosphere. In this lesson, students determine the types of living things within an outdoor study site, use a taxonomic key to determine the predominant land cover type of their site, then predict the... (View More) amount of water present. Data collection is based on protocols from the GLOBE program. This activity uses the 5E instructional model and is part of the "Survivor Earth" series of one-hour lessons. (View Less)

In this activity, participants learn about the hydrosphere by making observations and taking measurements. They will go outside and use scientific equipment to investigate temperature, pH and transparency of a body of water. They will use this... (View More) qualitative and quantitative data to understand why it is important to know about the condition of freshwater sources in many places in the natural environment and how these places are connected in the water cycle. Data collection is based on protocols from The GLOBE Program. This activity uses the 5E instructional model and is part of the "Survivor Earth" series of one-hour lessons. (View Less)

This activity was developed to get students thinking about the many ways that people use freshwater and how we can conserve this precious and fundamental natural resource. Students will watch a short documentary describing issues related to clean... (View More) water availability, analyze water-use data and start to think about how they consume and can conserve water. This background knowledge will lead to students collecting data about their own water use and finding areas in their lives to conserve water. This activity uses the 5E instructional model and is part of the "Survivor Earth" series of one-hour lessons. (View Less)

This field activity introduces students to the concept of a system. Students identify the components, inputs and outputs of the local system at a range of biometry study sites, as well as the boundaries of their investigations at these sites in... (View More) terms of space and time. Collected data from the different sites are analyzed and compared. The activity includes a student worksheet and data charts. Equipment needed to do this activity includes a compass and camera. This is a learning activity associated with the GLOBE Land Cover/Biology investigations and is supported by the GLOBE Teacher's Guide, Land Cover/Biology. (View Less)