This article describes the work being done by scientists to determine the origin of water found in Earth's oceans. A supplemental exploration of the Herschel Space Observatory is included. The article is targeted to children ages 10-12.

This question is addressed through a series of questions and answers, each providing related introductory information such as how climate change is studied, the history of Earth’s climate, and the effects of climate change on Earth’s geology and... (View More) biology. The Climate Kids website is a NASA education resource featuring articles, videos, images and games focused on the science of climate change. (View Less)

In this self-paced tutorial, learners examine data to determine the relative contribution of what we call natural climate cycles and that of human-caused greenhouse gases to contemporary climate change. Changes in the Earth-Sun geometry over time... (View More) are explored using interactive digital applets. A section supporting pedagogical techniques that begin with student prior conceptions and a list of common Earth science student misconceptions are included. Vocabulary terms are hot linked to a glossary. This is the sixth of ten self-paced professional development modules providing opportunities for teachers to learn about climate change through first-hand data exploration. (View Less)

This textbook chapter introduces the buffalo as a keystone species, and describes the environmental impacts of its near extinction, including today’s predominance of non-native species in the Great Plains. Human activities that contribute to... (View More) species extinction are addressed. Students graph historical sightings of buffalo, and calculate the number of buffalo killed for bone used in refining sugar and fertilizer and in the production of bone china. The resource includes a link to current news articles and a teacher's guide. This is the second chapter in the unit, Losing Biodiversity, examining the endangerment and extinction of entire species of plants and animals throughout the world due to human actions. The resource is part of Global System Science (GSS), an interdisciplinary course for high school students that emphasizes how scientists from a wide variety of fields work together to understand significant problems of global impact. (View Less)

This introductory textbook chapter presents data demonstrating decreased global biodiversity and its link to human activity. The resource includes a field-based student investigation of local biodiversity, links to current news articles, and an... (View More) essay-based unit assessment. A teacher's guide supports classroom use. This is chapter 1 in the unit, Losing Biodiversity, is about the endangerment and extinction of entire species of plants and animals throughout the world due to human actions. The resource is part of Global System Science (GSS), an interdisciplinary course for high school students that emphasizes how scientists from a wide variety of fields work together to understand significant problems of global impact. (View Less)

In this problem set, learners will analyze a table of the length of day (hours) and the number of days per year on Earth in past eras. They will calculate future values, plot some of the data and identify the rate of increase. Answer key is... (View More) provided. This is part of Earth Math: A Brief Mathematical Guide to Earth Science and Climate Change. (View Less)

This activity is designed to introduce students to planetary geologic features and processes. First, students will use NASA satellite images to identify geologic surface features on the "Blue Marble" (Earth), and will explore the connection between... (View More) those features and the geologic processes that created them. Using that information, students will then compare and discuss similar features on images from other planets. Included are the following materials: teacher's guide (with reference and resource information), student's guide (with activity sheets), and multiple cards of planetary images. Note that the range of targeted grade levels is quite broad; however, explicit adaptations for younger students are highlighted throughout the teacher's guide. This lesson is part of the Expedition Earth and Beyond Education Program. (View Less)

In this activity, students investigate sea level change during glacial maxima during the Ice Ages, and learn how lowered sea level presented additional routes for intercontinental human migration. Summary background information, data and images... (View More) supporting the activity are available on the Earth Update data site. To complete the activity, students will need to access the Space Update multimedia collection, which is available for download and purchase for use in the classroom. (View Less)

This activity provides a list of scientific prefixes and suffixes along with their English meaning. Students are instructed to combine word elements to create the name of a dinosaur, create an image, and then write a description of its habitat and... (View More) life history. The resource is part of the teacher's guide accompanying the video, NASA SCI Files: The Case of the Shaky Quake. Lesson objectives supported by the video, additional resources, teaching tips and an answer sheet are included in the teacher's guide. (View Less)

Remote sensing detects both human and physical features by using seven distinct image elements: tone, shape, size, pattern, texture, shadow and association. Students are introduced to each of these elements individually through images, descriptions... (View More) and related questions. Then, by assimilating and applying their knowledge, they interpret the remotely sensed image of an unidentified location. The URL opens to the investigation directory, with links to teacher and student materials, lesson extensions, resources, teaching tips, and assessment strategies. This is Investigation 2 of three found in the Grades 5-8 Module 4 of Mission Geography. The Mission Geography curriculum integrates data and images from NASA missions with the National Geography Standards. Each of the three investigations in Module 4, while related, can be done independently. (View Less)