HPU NCS2200 sun earth energy transfer lecture for earth science for elementary education majors summer online course

1. Solar Energy
Earth’s energy balance

2. Sun’s Energy
 Produced by Nuclear Fusion
 FUSION = two atoms coming together
 This process produces massive energy
 Only occurs spontaneously on the Sun
 Fission = atoms put out particles spontaneously
 This process produces much less energy than Fusion
 We use the fission process in nuclear power plants.

3. Fusion vs Fisson

4. Comparison of Fusion and Fission
 http://prezi.com/lzzpxsu-38kx/fusion-fission/

5. The Sun’s Energy

6. The Sun’s Energy

7. Earth’s Magnetic Field
The Earth’s
Magnetic Field is
created by the
movement of
electrical energy in
the molten core
within the earth.
The Magnetic field
protects us from
much of the Sun’s
Strongest energyA couple of good videos on earth’s magnetic field.
http://www.youtube.com/watch?v=yEYy_nVC4L0
http://science.howstuffworks.com/environmental/planet-earth-videos-playlist.htm

8. Radiation is
the transfer of
energy across
space and in the
atmosphere
Convecti
on is the
transfer of
energy
through a
fluid.
Air is a
fluid
Conduction is
the transfer of
energy through a
solid material.
How is energy transferred in the atmosphere?
A Fluid is
Anything That
flows it includes
Both air
and liquids

10. During photosynthesis, 95% of the sun’s
energy is NOT used by the plant
Energy used in Photosynthesis

11. Energy Flow Through the
Ecosystem
Each transfer of energy results
in a loss of energy through heat

12. Trophic (energy) Levels
90% of energy
Is LOST as heat
Between one
trophic level
and the next.