This textbook chapter presents several biodiversity case studies, including a study of prairie soil, the 1930's Dustbowl, and the importance of soil conservation practices. The resource includes a link to current news articles and a teacher's guide.... (View More) This is the fifth 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)

Readings in this chapter guide student reflection on sustainability of the planet, and whether the Earth system is near a tipping point, where ecosystems will reorganize and seek a new equilibrium, with consequences for biodiversity. The resource... (View More) includes a scientist profile, a video clip about Earth's tipping point (2012), and a personal reflection assignment. This is the sixth chapter in the unit, "A New World View," which introduces global systems science, emphasizing the concepts of environmental diversity, Earth as a system, and sustainability. The resource includes a textbook chapter, integrated hands-on and inquiry activities, links to current news articles, and a suite of pre- and post-unit assessments. A teachers guide supports classroom use. The resource is part of Global Systems 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 textbook chapter presents ocean and wetland ecosystems, and describes how floating plastic trash endangers aquatic species. Oceanographer Jacques Cousteau is profiled. The resource includes a student action plan to reduce waste in their... (View More) community, a link to current news articles and a teacher's guide. This is the seventh 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 introductory textbook chapter, students become familiar with how scientists view planet Earth. This is the first chapter in the unit, A New World View, which introduces global systems science, emphasizing the concepts of environmental... (View More) diversity, Earth as a system, and sustainability. The resource includes a textbook chapter, integrated hands-on and inquiry activities, links to current news articles, and a suite of pre- and post-unit assessments. A teacher's guide supports classroom use. The resource is part of Global Systems 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 laboratory activity, students investigate chromophoric dissolved organic matter (CDOM) through gradual dilution of black, green and chamomile tea. Through this activity, students discover how CDOM can dominate the absorption of sunlight, how... (View More) sunlight degrades CDOM through photochemical oxidation, and how CDOM levels are related to nutrient status, stratification and mixing of the ocean. Materials needed include coffee mugs, hot water, spoons, and tea. This resource is found in Rising Tides, a journal created for teachers and students reporting on current oceanography research conducted by NASA, NOAA, and university scientists, featuring articles, classroom activities, readings, teacher/student questions, and imagery for student investigation of marine science. (View Less)

In this laboratory activity, students experiment with becomes CO² concentrations in water as a prelude to investigating the marine carbon cycle. The activity includes a worksheet and assessment questions. Tap water, ocean water (real or simulated),... (View More) universal indicator solution, beakers and straws are required materials. This resource is found in Rising Tides, a journal created for teachers and students reporting on current oceanography research conducted by NASA, NOAA, and university scientists, featuring articles, classroom activities, readings, teacher/student questions, and imagery for student investigation of marine science. (View Less)

In this lab activity, students examine phytoplankton and picophytoplankton under a microscope and learn how to use a stage micrometer to measure microscopic specimens. Resources needed include a microscope, slides, coverslips, a stage micrometer,... (View More) and a phytoplankton/picophytoplankton sample obtained from a biological supply company. The lesson is supported by science content found in the journal, Rising Tides, focusing on current oceanography research conducted by scientists at NASA, NOAA, NASA, and universities. Rising Tides contains articles, classroom activities, readings, teacher/student questions, imagery and more designed for the biology/environmental/earth science classroom. (View Less)

In this activity, students learn about the molecular techniques used to study picoeukaryotes, and are led through a paper and pencil simulation of a Denaturing Gradient Gel Electrophoresis (DGGE) procedure performed on picoeukaryote DNA. The lesson... (View More) is supported by science content found in the journal, Rising Tides, focusing on current oceanography research conducted by scientists at NASA, NOAA, NASA, and universities. Rising Tides contains articles, classroom activities, readings, teacher/student questions, imagery and more designed for the biology/environmental/earth science classroom. (View Less)