Warm-Up # 4
What does the word “system” mean
in science?
Examples- human body system, solar
system, operating system…
Fracking Assignment
• Goes on pg 68
• If you haven’t yet, turn one
in!
Can be open or closed
Systems
Open means matter can be
exchanged with surroundings
• Example- lizard’s tank, the human body
Closed system means no matter
can pass
• Examples- pot with a lid, can of soda, the
Earth
The
Atmosphere
and Earth
Systems (pg 75)
Greenhouse Gasses (Pg 75)
• Different molecules absorb
energy differently
• Most atmospheric gasses
are made of 1 or 2 atoms
(O2, N2, Nobel gasses)
• Larger molecules have
more ways they can
vibrate and bonds can
stretch (kinetic energy)
• This energy can then be
passed to other molecules
Draw 3 boxes and show how greenhouse
gasses likes CO2 and H2O can increase
temperatures of a gas
Light hits atmosphere
Bottom of Pg 75
Greenhouse gas molecules
start to vibrate
Temperature increases
Methane
(CH4)
Claim: Methane
(CH4) is roughly
30X as potent as
CO2 when it
comes to
trapping heat.
Explain why.
Our planet is a closed system to
matter.
The Earth as
a System
(Pg 75)
Matter continually cycles and
interacts
Each subsystem of our planet is
referred to as a “sphere”
• Examples- Atmosphere, cryosphere,
biosphere
Pick one of the spheres
Planetary
Subsystems
(pg 74)
• Magnetosphere (challenging)
• Cryosphere (Challenging)
• Lithosphere
• Atmosphere
• Hydrosphere
Make a one pager
• Diagram and definition
• Description of one type of cycling that occurs
in this sphere
• Description of how it interconnects with 2
other spheres