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Fresh water resources- their quantity, location and distribution- are briefly discussed in this two-page article. The article can be used as a "reading to be informed" activity in a stand-alone fashion or can be incorporated into a lesson plan.
Derived from the Science on a Sphere film entitled "Water Falls," this short (2:50) video presents basic information on the percentage, allocation, and distribution of Earth's usable water.
This activity demonstrates optical properties of water: that different constituents in water affect the transmission, absorption, and scattering of different colors in the visible light spectrum. Inexpensive, off-the-shelf components are used to... (View More) build a light sensor and source, creating a simple spectrophotometer that can measure light absorption. In the second part of this activity, principles of ocean color remote sensing are applied to measure reflectance. Using components that are clearly visible allows students to configure them in different ways. Playing with the instrument design gives students a practical understanding of spectrophotometers, in-water optics, and remote sensing. As an extension of this concept, students are encouraged to think about how ocean color is used to estimate the concentration of chlorophyll to infer phytoplankton abundance, colored dissolved organic matter, and suspended sediments. (View Less)
This short video (2:01) uses an engaging approach to emphasize the importance of tracking and studying precipitation. The video cast explains how the Global Precipitation Measurement (GPM) mission will use a constellation of satellites to achieve... (View More) global coverage, thereby providing scientists with accurate precipitation data from around the world. In addition to the video, the site contains supplemental text which provides background information on the GPM mission. (View Less)
This poster features NASA's Global Precipitation Measurement (GPM) mission. The front features an image of the GPM Core Observatory satellite along with the constellation of satellites that will accompany it. Background information is provided on... (View More) the reverse side of the poster, including an overview of the mission, details of the satellite, the science and applications of the mission, and information on the constellation missions with which GPM will partner. Also included on the back is a multi-age educational activity on freshwater availability. See Related & Supplemental Resources to download a PDF of the poster. (View Less)
The total amount of water on Earth, the places in which it is found and the percentages of fresh vs. salt are examined in this lesson. A short demonstration allows students to visualize the percentage differences and a coloring exercise illustrates... (View More) locations. This lesson uses the 5E instructional model. All background information, student worksheets and images/photographs/data are included in these downloadable sections: Teacher's Guide, Student Capture Sheet and PowerPoint Presentation. (View Less)
Intended for use prior to viewing the Science on a Sphere film "Water Falls," this lesson introduces students to Earth's water cycle and the importance of freshwater resources.
Intended for use after viewing the Science on a Sphere film "Water Falls," this lesson deepens student's understanding of global precipitation measurement. Students will explore NASA satellite data gathered during Hurricane Sandy to learn how that... (View More) data was essential in helping scientists forecast its path and precipitation amounts. All background information, student worksheets and images/photographs/data are included in these downloadable sections: Teacher’s Guide, Student Capture Sheet, Assessment and PowerPoint Presentation. (View Less)
Learners will read or listen to a story about two sisters, Marisol and Sofia, as they explore the Sun's role in the water cycle. Additionally, numerous extension resources are included in the accompanying educator guide, such as suggestions for... (View More) no-cost language arts activities, links to further science activities, a book walk cue chart to guide classroom discussion before, during, and after the story, a graphic organizer, and alignments to the National Science Education Standards (NSES) and the Next Generation Science Standards (NGSS). (View Less)