This quantitative experiment involves lab teams in comparing a sample of room air with one of the greenhouse gases - carbon dioxide, nitrous oxide, or methane - and measuring their heat capacity. The activity requires an infrared heat source, such... (View More) as a heat lamp, two 2L beverage bottles, #4 one hole rubber stoppers, and a thermometer or temperature probe, volumetric flasks, a graduated cylinder, and tubing. Nitrous oxide can be obtained from a dentist, methane from gas jets in a chemistry lab, and becomes CO² can be generated using vinegar and baking soda. A worksheet guides student calculations of heat capacity of the different samples. The investigation s is supported by the textbook, Climate Change, part of the Global System Science, 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 is a hands-on lab activity about seawater density. After developing a hypothesis, learners will conduct a simple investigation of density. They will discuss changes in density observed and describe how salt affects the density of water.... (View More) Background information, common student preconceptions, a glossary and more is included. This activity is part of the Aquarius Hands-on Laboratory Activities. (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 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, 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 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, 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 lab-based activity, students learn how to use scientific instruments used to take hydrological data. Students will rotate among measurement stations for each of the hydrology protocols that will be done by the class. They will practice using... (View More) the field guide with the instrument or kit for that particular measurement, exploring sources of variation and error. The resource includes eight student activity sheets and an authentic assessment, and is part of the Hydrology chapter of the GLOBE Teacher's Guide. The activity is supported by the GLOBE hydrology protocols. GLOBE (Global Learning and Observation to Benefit the Environment) is a worldwide, hands-on, K-12 school-based science education program. (View Less)