Problem:

How does table salt affect the boiling temperature of water?

Research:

Many cooking recipes give you the instruction of adding salt to the water when boiling something. This can do many things to the water and there must be a special reason why they tell you to add salt to the water. This experiment will show us how salt affects the temperature of boiling water.

Hypothesis:

Adding table salt to boiling water will cause the water to boil at a higher temperature.

Material:

· Table Salt
· Distilled Water
· 2 Quart Cooking Pot
· Pint measuring cup
· Teaspoon and tablespoon measuring spoons
· Thermometer
· Stirring spoon

Procedure:

1. Boil one quart of distilled water on a stove.
2. Measure the temperature of the boiling water. Record the highest temperature reading.
3. Measure out table salt using a kitchen measuring spoon. Level the spoonful.
4. Add the measured salt to the boiling water and stir.
5. Measure the temperature of the boiling water with the salt in it. Record the highest temperature reading.
6. Repeat it now with two spoons of salt.

Record And Analyze Data:

 Temperature of Boiling Water 212.9° F Amount of salt added the first time 1 spoon full Temperature of boiling water after salt was added 215.6°F Amount of salt added the second time 2 spoon fulls Temperature of boiling water after salt was added the second time 218.3° F