Does Salt Affect The Freezing Point Of Water?

In part one of my project you learned about how salt affects the freezing point of water. In my science project I wanted to see if salt affected the freezing point of water. I started by doing some experiments.

My first experiment was whether tap water or salt water would freeze first. I first started by mixing up the salt water warming it for one minute and warming the tap for

one minute also. My second experiment was what ice cube would melt fastest. I started by getting

two bowls. Two ice cubes, and salt. I began by sprinkling salt on the ice cube in one of the bowls but not the other to see if the ice with the salt on it or the ice without the salt would freeze first.My next experiment was going fishing. I had to get an ice cube, a bowl, string,

and salt. First I had to put the ice cube in a bowl and place the string over the ice and begin sprinkling salt on it.In part one of my project you learned about how salt affects the freezing point of water. In

part two you will learn all about how acid effects the world and what it is made of.

Both sulfur dioxide and sulfur trioxide are chemicals that are called acidic oxides. They react

with water to form their corresponding acids- sulfurous acid and sulfuric acid. The increasing

concentration of these molecules in the atmosphere in recent years has caused the environmental

problem we know as acid rain. There are a number of sources of sulfur dioxide. A natural source is

volcanic eruptions. Many metals in nature are in a combined form with sulfur. When smelting or

roasting refines these ores, the sulfur in the metal combines with oxygen to form sulfur dioxide. The

biggest source of sulfur dioxide is from burning fossil fuels in industry and in homes. Coal contains

.5 percent to 5 percent sulfur. Sulfur dioxide released into the air often combines with oxygen to form

sulfur trioxide. Acid rain can be very harmful to stone statues and buildings, forests and aquatic