Heating water experiment

By: Brianna, Jordan, Jordan, and Tyler.

Purpose

• To find out how energy is transferred between two liquids.

HypothesisHypothesis

The hypothesis was that the heat will The hypothesis was that the heat will eliminate the cold water and stay the eliminate the cold water and stay the same. same.

+ =?????????=?????????

ProceduresProcedures

• 1. Take 20 mL of water and heat until it reaches 50 1. Take 20 mL of water and heat until it reaches 50 degrees.degrees.

• 2. Then add 10 mL of cold water to the 50 degrees of hot 2. Then add 10 mL of cold water to the 50 degrees of hot water. water.

• 3. Mix for 15 seconds then record the temperature.3. Mix for 15 seconds then record the temperature.• 4. Repeat steps 1-3 with 60 degrees, 70 degrees, 80 4. Repeat steps 1-3 with 60 degrees, 70 degrees, 80

degrees, and 90 degrees.degrees, and 90 degrees.

Independent Variable

The independent variable is the temperature at which the water was.

Dependant VariableDependant Variable

The dependant variable was the amount of water.

Conclusion

The hypothesis was that the heat will eliminate the cold water and stay the same. The hypothesis was disproved because it the heat did not eliminate the cold water.The purpose was to find out how energy is transferred.The starting temperature was 20.6 degrees. The mixed temperature for 50 mL was 46.5 degrees, 60 mL 64.4 degrees, 70 mL was 62.5 degrees, 80 mL and 69.8 degrees and when we filled it up to 90 degrees and the temperature was 67.5 degrees.

Our Data.

Amount of water Starting temperature Mixed temperature

50 mL of water 20.6 degrees 46.5 degrees

60 mL of water 20.6 degrees 64.4 degrees

70 mL of water 20.6 degrees 62.5 degrees

80 mL of water 20.6 degrees 69.8 degrees