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Earth processes  
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Middle school  
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This activity requires construction of a simple salinity tester. Students will create their own calibration scale during this experiment, and look at the change in salinity that would arise if freshwater was suddenly dumped into the ocean. Materials... (View More)

In this activity, students create a reservoir model using hoses, a bucket, a flat pan, and water, to understand the inputs and outputs of a local watershed or reservoir. The resource is supported by teacher background information, assessment... (View More)

In this activity, students investigate the interacting parts of the Earth system by observing changes in evaporation rate in four small aquariums with different initial conditions. The demonstration requires 4 small aquariums, soil, plants, water,... (View More)

In this activity, students analyze the results of an experiment, conduct research, and describe the potential importance of positive and negative feedbacks in governing the response of the Earth system. Teacher background information, assessment... (View More)

In this paper and pencil exercise, students create graphs that describe the effect of a series of experiments using Daisy World, an energy balance model, that can be used to demonstrate concepts of equilibrium, homeostatis, and positive and negative... (View More)

In this problem-based learning activity, students conduct research to determine the potential impact of a changing climate on maple sugar production. Student worksheets, a teacher guide, and an assessment rubric are included. The activity is... (View More)

Students investigate whether global climate change will intensify the effects of hurricanes on coastal communities by determining the areas most vulnerable to hurricane surges by using topographic maps, a physical model, and a time series of... (View More)

This lesson originally appeared in "The Technology Teacher" and introduces common weather concepts and terminology. Students learn about weather map symbols and are invited to show real weather scenarios by drawing symbols on a map. A base map of... (View More)

This article introduces weather terminology and encourages discussion of the weather. A suggested project is provided for learners to create a book of weather terms. Using the list of terms provided, students define and identify the kind of unit... (View More)

The effects of volcanoes on both the environment and people are the focus of this investigation. Students are introduced to the term "buffer" and are tasked with creating a possible buffer zone around Mount St. Helens. Students begin by assigning 32... (View More)