Acid rain

Introduction:
Acid rain has proven to be a big problem for Connecticut. It has had a great impact on builders, wildlife, and the water sources. Acid rain has many components in it such as pollutants from plants to sulfuric acid from burning coal.

Problem: Which stone is the most resistant against acid rain?
Hypothesis: If we test the different stones against acid rain then red sand stone would be the best because it is heavier and cannot be easily broken.
Independent variable: Type of stones
Dependent variable: Weight after being in vinegar for a couple days
Control: None
Constants: Amount of vinegar

Materials:
Beakers
Vinegar
Red Sand Stone
Pea Stone
Marble
Plastic
Rubber Bands
Cups
Scale
Paper Towels

Sketch up Lab:

Procedure:
1. Get the beaker
2. Fill the beaker with 20 ml of vinegar
3. Get the 3 types of stone and weigh them
4. Put them into 3 different cups
5. Pour vinegar over the stones
6. After a few days go by drain the vinegar and dry the stones.
7. Weigh the stones after they are done drying
8. Record data and subtract the difference from the original weight

Weight Before and After Acid Rain
Types Of Stone
Red Sandstone
Pea Stone
Marble
Before
12.6grams
7.2grams
5.5grams
After
12.6grams
7.2grams
4.8grams
Total loss
0grams
0grams
0.7grams
Percentage
0%
0%
12%

Conclusion:
My hypothesis was if we test the different stones against acid rain then red sand stone would be the best because it is heavier and cannot be easily broken. My hypothesis was supported. In the data Red Sandstone lost 0 grams along with Pea Stone. Marble was the weakest losing 12 % of it after only a couple of days. An error we made was the stone did not have enough time to dry. Maybe we could have left the stones to dry for a day or two? This is related to the real world when builders are trying to build buildings or statues they have to see which material would be the best. If we could improve the