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High school  
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This textbook chapter describes the processes through which El Niño and La Niña conditions emerge. The resource includes an animation of ocean currents, and links to current news articles, and a suite of pre- and post-unit assessments. A teacher's... (View More)

In this lab activity, student teams hypothesize which source has a greater becomes CO² concentration: their breath, auto exhaust, or air in the classroom. They test gas samples from each of these sources, plot data, and hypothesize about the... (View More)

This textbook chapter summarizes the changes in the ecosystems found in the world's forests. This is chapter 2 in the unit, A New World View, which introduces global systems science, emphasizing the concepts of environmental diversity, Earth as a... (View More)

In this problem-based learning activity, students assume roles as senior science advisors for the Louisiana Environmental Agency. Student groups are assigned to the atmosphere, biosphere, lithosphere or hydrosphere and investigate the impacts of a... (View More)

In this hands-on activity, students learn about the different realms of the Universe and explore their sizes and relative scales. They will be guided through a process that uncovers the immense sizes of the Sun, Solar System, Solar Neighborhood,... (View More)

Keywords: NSTA2013

Learners will take and then compare the images taken by a camera - to learn about focal length (and its effects on field of view), resolution, and ultimately how cameras take close-up pictures of far away objects. Finally, they will apply this... (View More)

In this data analysis activity, students compare near surface temperature at the time of the solstices in two different hemispheres, and see how the tilt of the Earth's axis in relationship to the Sun contributes to temperature differences across... (View More)

Keywords: Tilt; Earth axis; Solstice
Audience: Middle school, High school
Materials Cost: Free per student

The H-R diagram is a scatter graph of stars, a plot of stellar absolute magnitude or luminosity versus temperature or stellar classification. It is an important astronomical tool for understanding how stars evolve over time. Stellar evolution cannot... (View More)

Keywords: Stellar evolution
Audience: High school, Higher education
Materials Cost: Free

Students are introduced to radar imaging. The 15-page guide begins with a review of the electromagnetic spectrum then provides background information on the Lunar Reconnaissance Orbiter (LRO) and the Mini-RF radar-imaging device aboard the LRO. Two... (View More)

Keywords: Polarization
Audience: High school
Materials Cost: 1 cent - $1 per student

This chapter describes how to set a scale and measure distances and areas on satellite images. Using ImageJ, a freely available image analysis program that runs on most operating systems, users set the spatial calibration of an image, then select... (View More)