2. Water Energy Transfer Experiment By: Luke Jasinski, Kyle Wishwanick, Kyle Mays, and last but not least, Ryan Quitinsky

3. Purpose To find out how energy is transferred between two liquids.

4. Materials Water Temperature sensor Beakers Graduated Cylinder Alcohol lamp Burner stand

5. Independent Variable The independent variable is temperature.

6. Dependent Variable The dependent variable is the amount of water.

7. Constants Same amount of cold water Same temperature of hot water Same equipment Same liquids

8. Hypothesis As the amount of hot water goes down with the cold water (same amount) the temperature will go down.

9. Procedures 1.Add 50mL. of hot water in one beaker. 2.Add 50mL. of cold water in another beaker. 3.Mix them together and take the temperature. 4.Repeat 1-3 but use 35mL. of hot water. 5.Repeat 1-3 but use 20mL. of hot water.

10. Results Temperature (Cold Water) Temperature (Hot Water) Temperature (Mixed) Amount of Water 21.780.049.150 ml 21.280.045.335 ml 21.980.039.820 ml 21.680.044.7Average

11. Conclusion In our experiment we figured out that when the two beakers of water mixed, the hot water goes down while the cooler water goes up and the temperature goes down. This happened because when there was less cold water, the temperature was bigger then if there was more cool water. In our table, this shows when the temperature in the first column when the numbers were smaller, the third column’s numbers were smaller.