To help students articulate and integrate their existing knowledge about the air, water, soil, and living things by viewing them as interacting parts of a system

The Earth System Satellite Images help students observe and analyze global Earth and environmental data, understand the relationship among different environmental variables, and explore how the data change seasonally and over longer timescales.  

This activity is one of a series in the collection, The Potential Consequences of Climate Variability and Change activities. 

In this activity, students investigate three different soil samples with varying moisture content. They use a soil moisture probe to determine the percentage (by volume) of water in each of the soil samples.