1. Diva Dollar Question
Why does a large pot of water take so long to boil? (Hint: Look at the front of the ESRT’s)

2. Aim: How are the phase changes of water shown on a graph?
Topic: Water Cycle & Climate
Main Idea: Heating Curve of Water

3. 1) Which heats up faster: a metal fork or a wooden fork?
A metal fork heats up faster because it has a lower specific heat (amt of heat needed to raise the temp.).

4. 2) What is latent heat?
This is heat energy absorbed or released during a phase change.

5. 3) What is a “phase change”?
Melting= solid to liquid= energy absorbed
Evaporation= liquid to gas= energy absorbed
Condensation= gas to liquid= energy released
Freezing= liquid to solid= energy released

7. What is a heating curve?

8. 4) What do the flat lines on a heating curve represent?
These represent when energy is being absorbed or released and water is changing phase.

9. 5) What do the slanted lines on a heating curve represent?
These represent when water is in a phase (solid, liquid or gas).

10. Diva Dollar Question
Why does the temperature go up just before it rains but not before it snows?

11. evaporation(condensation)
energy released
gas
evaporation(condensation)
(2260 J/g)
liquid
melting(freezing)
(334 J/g)
solid
energy absorbed

12. Summary: Answer the questions at the bottom of the notes.