This booklet with companion videos introduces electromagnetic waves, their behaviors, and how scientists visualize these data. Each region of the spectrum is described and illustrated with examples of NASA science.

In this field activity, students conduct a visual survey of a hydrology study site, and collect information about land cover and water quality. These observations are used to stimulate research-able questions about land cover and water chemistry... (View More) that can be the focus of future investigations. The use of archival evidence in an investigation is discussed. This is a learning activity associated with the GLOBE hydrology investigations and is supported by the Hydrology chapter of the GLOBE Teacher's Guide. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program. (View Less)

This chapter provides an overview of the science of studying the Earth system, with a focus on understanding the connections among phenomena that can be traced through the energy, hydrological and biogeochemical cycles, on a range of time and... (View More) spatial scales. A section on seasonal cycles deepens student understanding of environmental data collected using GLOBE protocols. GLOBE field protocols and learning activities connected to this chapter are found in the Earth system science section of the GLOBE Teacher's Guide. (View Less)