1. AIM: How does heat travel
AIM: How does heat travel? DO NOW: Period 1 and 6: Take a packet and take out a highlighter. Period 4 and 9: Take out yesterdays packet, get into your partner group and complete step 5 HW: Lab # 22 due tomorrow Midterm review due Thursday

2. The water is a heat sink for the air.
The diagram represents a closed energy system consisting of air and equal masses of copper, granite, and water in a perfectly insulated container. The temperatures were taken at the time the materials were placed inside the closed system.
                                                
In this system, which material is a heat sink for another material?
The water is a heat sink for the air.
The copper is a heat sink for the granite.
The granite is a heat sink for the water.
The copper is a heat sink for the air.

3. Types of energy transfer

4. Which example of heat transfer is due mainly to convection?
Heat energy transferred by air moving from the Earth's surface to the upper atmosphere
Heat energy transferred by being reflected from a lake surface to the air above
Heat energy transferred through a solid metal door
Heat energy transferred from the Sun to the Earth

5. CONDUCTION Energy transfer by direct molecular contact
Most common through a solid object
Can occur when a solid object TOUCHES the molecules of another solid, liquid (Metal bar in water) or gas

7. Convection Transfer of heat through fluids (liquids, gases and magma)
Results from differences in density within the fluids

8. The differences in density could be caused by changes in both temperature and/or pressure

9. Ex: warm air rises, cool air sinks
Creates a CONVECTION CELL

11. Radiation

12. Prove this statement: Infrared radiation is weaker than visible light.

15. Radiation
Maximum Energy from the Sun is in the form of Visible Light (Short waves)

16. Maximum Energy RE-RADIATED from the Earth is in the form of Infrared (longer waves)

17. Black and rough absorbs the best
If it is a good absorber….it is a good radiator (re-radiation)

18. White (shiny) and smooth is the best reflector
Energy absorbed and released by the Earth is called terrestrial radiation

19. What could block(scatter and reflect) or absorb it?
Aerosols and dust in the atmosphere
Water vapor and CO2
Volcanic ash

20. 1 3 1 2 3

22. What is a heat equator?
The thermal equator (also known as "the heat equator") is a belt encircling the Earth, defined by the set of locations having the highest mean annual temperature at each longitude around the globe.