Initial Observation :Cooking instructions tell you to add salt to water before boiling it.Pupose of the project :To find out how table salt affects the boiling temperature of water.Hypothesis :Adding table salt to boiling water will cause the water to boil at a higher temperature.Materials and Equipments :Table Salt Distilled Water 2 Quart Cooking Pot Pint measuring cup Teaspoon and tablespoon measuring spoons Thermometer Stirring spoon Experimental procedure : Boil one quart of distilled water on a stove. Measure the temperature of the boiling water. Record the highest temperature reading. This is the control to compare with. Measure out table salt using a kitchen measuring spoon. Level the spoonful. Add the measured salt to the boiling water and stir. Measure the temperature of the boiling water with the salt in it. Record the highest temperature reading. Repeat for other amounts of salt. Experimental observations : When the salt was added to boiling water it bubbled up more, and then stopped boiling. Shortly afterwards, it boiled again. If the thermometer extends beyond the outside of the pot it reads a higher temperature. Heat from the stove burner makes the thermometer read higher. Keep the thermometer over the pot when making temperature measurements. Conclusions :Is the hypothesis correct?Yes. Adding table salt to water causes the water to boil at a higher temperature. Problems with doing the experiments.The temperature readings were hard to make. Gloves had to be worn to keep my hands from getting too hot. Had to be careful that the stove heat was not hitting the thermometer. Other things learned.Be careful when adding salt to boiling water. It makes the water boil vigorously for a second or two.
Initial Observation :Cooking instructions tell you to add salt to water before boiling it.Pupose of the project :To find out how table salt affects the boiling temperature of water.Hypothesis :Adding table salt to boiling water will cause the water to boil at a higher temperature.Materials and Equipments :Table Salt Distilled Water 2 Quart Cooking Pot Pint measuring cup Teaspoon and tablespoon measuring spoons Thermometer Stirring spoon
Experimental procedure :
Experimental observations :
When the salt was added to boiling water it bubbled up more, and then stopped boiling. Shortly afterwards, it boiled again.
If the thermometer extends beyond the outside of the pot it reads a higher temperature. Heat from the stove burner makes the thermometer read higher. Keep the thermometer over the pot when making temperature measurements.
Conclusions :Is the hypothesis correct?Yes. Adding table salt to water causes the water to boil at a higher temperature. Problems with doing the experiments.The temperature readings were hard to make. Gloves had to be worn to keep my hands from getting too hot. Had to be careful that the stove heat was not hitting the thermometer. Other things learned.Be careful when adding salt to boiling water. It makes the water boil vigorously for a second or two.