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Earth structure  
Instructional Strategies:
Activating prior knowledge  
Cues, questions, and advanced organizers  
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Now showing results 11-20 of 43

In this textbook chapter, scientists studying the concentration of becomes CO² in the atmosphere are profiled. The techniques for measuring and recording carbon dioxide concentrations at the Mauna Loa Observatory are described. A link to a video... (View More)

Audience: High school
Materials Cost: Free

Correlations between sea surface temperatures and the frequency and intensity of hurricanes are investigated in this lesson. The activity focuses on six named hurricanes that occurred between 1999 and 2009. Satellite data on those hurricanes, along... (View More)

In this lesson, students investigate the relationship between precipitation, surface temperature and vegetation for four geographic locations. Students will download graphs of each of the three system components (vegetative index, surface... (View More)

Audience: Middle school
Materials Cost: Free

How effective would solar cells be in any particular area of the United States? In this activity, students answer that question by analyzing graphs of incoming solar radiation. Students will download two solar radiation graphs, one based on latitude... (View More)

Audience: Middle school, High school
Materials Cost: Free

Learners will investigate how much you can learn about something just by looking at it. In Activity 1, students study aerial photographs to identify geologic features, determine how they differ from one another, and examine the processes involved in... (View More)

This is an activity about how the Sun can affect the Earth's atmosphere, specifically the ionosphere. Learners will use real data from a Sudden Ionosphere Disturbance Monitor, or SID Monitor, to identify the signatures in the graphed data that can... (View More)

This is a hands-on lab activity about evaporation. Learners will conduct experiments to observe the process of evaporation. They will then describe the process of evaporation, and the general water cycle, through discussion and pictures. Background... (View More)

Keywords: Water cycle

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)

This is a hands-on lab activity about the chemical composition and conductivity of water. Working in groups, learners will: conduct an experiment involving the process of electrolysis, prepare an experiment to better understand the process of ion... (View More)

Keywords: Electrolytes; Salinity
Audience: High school
Materials Cost: $1 - $5 per group of students

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)