I.
A.
B.
Heat Transfer
**skip several lines between outline
labels**
Thermal Energy and Temperature
Measuring Temperature
Temperature Scales
II. How Heat is Transferred
A.
B.
C.
D.
Radiation
Conduction
Convection
Heating the Troposphere
Section 2: “Heat Transfer”
Assignment:
Read pgs. 42-45 “Heat Transfer”
Complete the outline with a partner as
you both read.
Answer questions #1 and 2 on pg. 45
“reviewing key concepts”
1
Heat Transfer
section 2/ pages 42-45
I. Thermal Energy and Temperature
Temperature- average amount of energy of
motion of each particle of a substance
Thermal Energy- total energy of motion in
the particles of a substance
A.
Measuring Temperature
-Air temperature is usually measured
with a thermometer. A thermometer is a
thin glass tube with a bulb at one end
containing colored alcohol.
B.
Temperature Scales
-Temperature is measured in units called
“degrees” (Celsius or the Fahrenheit
scale)
2
II. How Heat is Transferred
-Heat = transfer of energy from a
hotter object to a cooler one
-Heat is transferred in three ways:
radiation, conduction, and
convection
A. Radiation
- the direct transfer of energy
by electromagnetic waves
B. Conduction
- The direct transfer of heat from
one substance to another
substance that it is touching
C. Convection
- The transfer of heat by the
movement of a fluid
3
D. Heating the Troposphere
- Radiation, conduction, and
convection work together to
heat the troposphere
-Sun’s radiation heats the surface,
air is warmed by radiation and
conduction
-Convection currents move heat
throughout the troposphere.
HEATING
Draw the SUN and EARTH
4
Sketch and Label the
following with a partner
Types of Sun’s energy
Amount of Sun’s energy reaching Earth’s
surface
Energy transfer (heating) in the Troposphere
5
Sketch and Label the
following with a partner
Types of Sun’s energy
Amount of Sun’s energy reaching Earth’s
surface
Energy transfer (heating) in the Troposphere
6