Lesson Ideas from Sulata Ghosh: geochemist at FCR-STEM, FSU
SC.912.E.6.4
Analyze how specific geologic processes and features are expressed in Florida and
elsewhere.
This is perhaps more to do with observing a specific geologic feature or process and explain its
formation or existence using geological knowledge (which may or may not directly relate to
plate tectonics)
I would start at the geological features students have noticed around. Stress on the importance of
scientific observation. Students will probably comment on the features of the beaches: sand,
dunes, barrier islands. Some students will comment on lakes, caves, etc. This will provide some
foundation to explain the various sedimentary processes that primarily govern the surficial
geology of Florida.
Describe the carbonate platform in Florida. Explain how this limestone formed. Explain the
chemical composition of limestone and how it makes it vulnerable to chemical weathering
causing the formation of Karst topography. Explain the various features of Karst topography
such as caverns (stalactites and stalagmites), lakes, sinkholes and springs. This is also a good
time to maybe explain some of the geologic hazards of the area, making it relevant to their
surroundings.
I would take this opportunity to introduce the groundwater system of Florida (the Florida
aquifer).
Once the geology of Florida is roughly covered, we can ask the question: How is the geological
features we see in Florida different from the geology of, say, Georgia? Arizona? California?
Australia? China? Students are obviously not expected to know the detailed geology of these
regions but they can make the observation that there are different processes giving rise to
different geologic features in different parts of the world. This depends on their tectonic setting
and sedimentary setting (and therefore geographical setting). A good way to perhaps deal with
this would be to maybe ask students about different places they have been to, within Florida and
outside Florida. Another way would be to show pictures of major geologic feature around the
country and the world and get them to explain its geologic setting.