Lesson Plan

Snails as Bioindicators of Acid Deposition - Middle School

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Grade Level:
Sixth Grade-Eighth Grade


In this lesson students will better understand how snails are an important part of the soil’s food chain and why scientists are concerned about their population.  This unit is broken into three parts. This unit involves a trip to the park and is accompanied by two preparation activities and two wrap-up activities.


1) understand the biodiversity of the Great Smoky Mountains National Park
2) recognize that many snails here are endemic species, meaning they are known to live only in the park
3) recognize that snails only live in certain geologic areas
4) describe physical characteristics that make one snail shell different from another
5) learn the definitions associated with snails
6) explain why land snails are important to an ecosystem

Last updated: April 14, 2015