Dissolving Salt

Materials

• 3 cups
• 1cup of water for each cup
• 1 teaspoon
• salt

Prediction

• If you add more salt to the water then it will take longer for the salt to dissolve.

Research Question

• How long will it take water to dissolve different quanites of salt.

Independent and Dependent variables

• Independent is the ammount of salt.
• Dependent is the time it take to dissolve the salt.

Procedure

• Fill 3 cups with 1 cup of water.
• Add 1teaspoon of salt to the first cup.
• Add 2 teaspoons of salt to the second cup.
• Add 3 teaspoons of salt to the third cup.
• Time and stir all three of the different cups.

Data

• It took 22 seconds to dissolve 1 teaspoon of salt.
• It took 35 seconds to dissolve 2 teaspoons of salt.
• It took 43 seconds to dissolve 3 teaspoons of salt.

Graph/Equation

• The equation of the line is y=10(x)+13

Conclusion

• When you add more salt to a fixed ammount of water it takes longer for the salt to dissolve.