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Earth structure  
Learning Time:
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Now showing results 41-50 of 111

This article provides students with an overview of the technologies used to study the health of the Chesapeake Bay, which is at risk for eutrophication from non-point source pollution. The article describes how data from research vessels, buoys, and... (View More)

In this activity, students learn about the biological and physical conditions that lead to eutrophication of a water system by using real-time data to predict the the growth of harmful algae. They also conduct research on the Internet to learn more... (View More)

These two hands-on labs are about the role of temperature and salinity in governing the density of seawater, a major factor controlling the ocean's vertical movements and layered circulation. In the first activity students work in groups to... (View More)

Students will make predictions about what they think they will find in a sample of soil. They will investigate the sample and sort out the various items they find. Next they will spend time outside observing one or more sites to see what they find... (View More)

Keywords: Soil; Graphic novel

This activity has two purposes: challenge the learner to develop a procedure for investigating a research question and to learn more about factors affecting the dynamics of air in motion. It demonstrates that warm air and cold air differ in weight... (View More)

Each student will explore three activities that promote understanding of and respect for soil. They will generate responses to the following questions: "What makes up soil?" and "What lives in the soil?" Next the students will watch a demonstration... (View More)

Keywords: Soil

The purpose of this investigation is to understand how the amount of water vapor in the air at various temperatures affects the way the human body responds. This is an important basic concept for understanding why one might feel either comfortable... (View More)

In this data analysis activity, students investigate the relationship between between surface temperature, tropospheric ozone, and air quality. Step-by-step instructions for use of the MY NASA DATA Live Access Server (LAS) guide students through... (View More)

In this data exploration activity, students will access, download and graph authentic ozone data for four different locations on Earth. The ozone levels at the four sites are compared and analyzed, and students investigate the cause of changes in... (View More)

Keywords: Dobson unit
Audience: Middle school, High school
Materials Cost: Free

In this lesson, students investigate the carbon monoxide level at a fixed latitude to determine if there is a relationship to population density. The lesson provides detailed procedures, related links and sample graphs, follow-up questions and... (View More)