![SWI2-Ph ShermanPostWall](https://stonewall.uconn.edu/wp-content/uploads/sites/534/2014/03/SWI2-Ph-ShermanPostWall.jpg)
Stone walls can be approached from any of the classic fields of science. For an activity, you might take a group of students to a wall and ask them these questions:
- Physics: Why do walls stand up so quietly? Answer: Force balance, friction, and mass.
- Chemistry: Why do stones look different on the outside? Answer: weathering from naturally acid rain, organic contributions.
- Ecology: What lives in stone walls? Answer: chipmunks, amphibians, snakes and “trolls.” The plants are very different too.
- Geology: Where did the stones come from? Answer: glaciation and ancient mountain building.
If this is an indoor activity, use one of the photos on this website.
![Tax-SingleVermont](https://stonewall.uconn.edu/wp-content/uploads/sites/534/2014/03/Tax-SingleVermont.jpg)
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