1. 62 Quantifying Energy

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3. 62 Quantifying Energy Key Vocabulary heat temperature

4. 62 Quantifying Energy Look at the two beakers Is the temperature the same in both beakers? Do the waters in each beaker have the same amount of thermal energy? Record your answers in your notebook.

5. 62 Quantifying Energy Look at the next set of beakers Is the temperature the same in both beakers? Does the water in each beaker have the same amount of thermal energy? Discuss your thoughts with the class.

6. 62 Quantifying Energy Brainstorm Brainstorm a way to determine the amount of energy it takes to melt an ice cube. Share your thoughts with the class.

7. 62 Quantifying Energy Read the introduction and look for key ideas The ice cubes absorb thermal energy, which causes them to melt.

8. 62 Quantifying Energy How much energy does it take to melt an ice cube?

9. 62 Quantifying Energy Safety Use caution when working with the hot water. If you spill any on your hand, hold your hand under cool water for five minutes.

10. 62 Quantifying Energy Complete the Procedure and record your data Be sure to take the temperature readings immediately before adding the ice to the hot water and immediately after the ice melts.

11. 62 Quantifying Energy How does this activity relate to energy in the home? Share your thoughts with the class.

12. 62 Quantifying Energy Analysis question 1 If the energy absorbed by the ice is exactly equal to the energy lost by the water, what was the amount of energy needed to melt the ice? Show your calculation.

13. 62 Quantifying Energy Analysis question 2 Do you think all of the energy lost by the hot water was transferred to the ice? Explain.

14. 62 Quantifying Energy Analysis question 3 Do you think that stirring the mixture had an effect on the melting of the ice? Explain why or why not.

15. 62 Quantifying Energy Analysis question 4 Based on your answers to Analysis Questions 2 and 3, do you think your calculation of the heat energy absorbed by the ice is likely to be too high or too low? Explain.

16. 62 Quantifying Energy Analysis question 5 How is the energy transfer in this experiment similar to the energy transfer that occurs in a house? Explain, and provide an example.

17. 62 Quantifying Energy How much energy does it take to melt an ice cube?

18. 62 Quantifying Energy Key vocabulary definitions Heat - The movement of thermal energy from hot to cold. Temperature - A measure of molecular motion, generally using a Fahrenheit (F) or Celsius (C) scale.