In this lesson, students investigate and identify various phytoplankton using images that were previously taken with a compound microscope. Credit: This lesson is modified from a lesson of the same name created by The Center for Microbial Oceanography: Research and Education 
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Students use Phytopia: Exploration of the Marine Ecosystem, a computer-based tool, to investigate various phytoplankton species and topics relating to phytoplankton biology.
In this lesson, students will explore the effect of aerosols on sky color and visibility by using an interactive virtual model.
Use the AirNow.gov website to determine current air quality in US locations, as well as other information.
In this lesson, students will explore the effect of aerosols on sky color and visibility by using an interactive virtual model.
This lesson walks students through the use of Landsat false-color imagery and identification of different land cover features using these as models.
This USGS activity leads students to an understanding of what remote sensing means and how researchers use it to study changes to the Earth’s surface, such as deforestation.