Effect of acid rain on buildings
The hypothesis that limestone would see the greatest amount of damage from acid rain, is proven to be true.
Acid rain is a serious threat not only to plants and animals, but also to buildings, monuments, bridges and our very homes. Buildings and monuments that hold historical value are literally being dissolved and washed away by acid rain. Even modern buildings and bridges are not spared. Bridges made of steel are weakened due to corrosion caused by acid rain. The cost to major cities, for repairs necessitated by damage caused by acid rain, amounts to millions of dollars.
This science fair project may be repeated, this time, with one set of specimens exposed to sunlight and the other set kept in a dark room.
Modify the science project experiment, using other construction materials like cement, steel, copper, etc.
How to affect acid rain in buildings? - http://worldacidrainsecrets.blogspot.com/2010/01/how-to-affect-acid-rain-in-buildings.html
How dies acid precipitation affect marble and limestone buildings? - http://pubs.usgs.gov/gip/acidrain/5.html
Handle acids with care - ensure that you wear protective clothing/goggles/gloves. Adult supervision required.