Answer:
Problem/Question: There are many snowy days, but salt can potentially harm vegetation near the roadways
Possible Hypotheses: If we use other, but healthier chemicals less harm will be put upon the vegetation.
Manipulated/Independent: Amount of chemicals we use/which chemical we use
Responding/Dependent: Vegetation
Constants (list three):
-amount of knew salt
-amount of snow
-area of which the experiment is tested in
Control: The salt before the change in chemical