Transcript Chp 1 notes Intro to biosphere

 Earth
 Part
is 3rd planet from the sun
of the inner planets because
it is made of rock
 Biosphere
contains all the land,
water, air, and living organisms.
1.Lithosphere = land
2.Hydrosphere = water
3.Atmosphere = air
1.
2.
3.
Lithosphere: walk, drive, ride
bike
Hydrosphere: drink, swim,
shower
Atmosphere: breathe, travel
(plane)
 Organisms
take what they need
(food, water) from the biosphere
1.
Biosphere: the combined parts of
the lithosphere, hydrosphere,
and atmosphere in which life
exists





Organism: any living thing
Lithosphere: the layer of land that forms
Earth’s surface (made of various rock types)
Hydrosphere: the parts of the Earth that are
made of water
Atmosphere: the layer of gases that
surrounds the Earth
Ecology: the study of interactions among
living and nonliving things
Igneous: liquid rock that has cooled
◦ Example: basalt, granite, obsidian
2. Sedimentary: rocks that have been
compressed over time
◦ Example: stalagmites (from a
precipitate), limestone, sandstone,
shale
3. Metamorphic: rocks formed by heat
and pressure
◦ Example: marble, slate, schist
1.
 Supports
life because many
organisms depend on water for
survival and it regulates
temperature
 (holds heat)

Salt water = 97%

Fresh water = 3%
*however, a lot of fresh
water is trapped in ice

 Most
living things depend on
fresh water for survival
 It
determines how many
organisms can live in one area
1.
2.
3.
Igneous Rock: rock that is formed when liquid
rock solidifies and cools
Sedimentary Rock: rock that forms when
layers of sediment compress & cement
together
Metamorphic Rock: rock that have been
transformed by heat & pressure
1.
2.
3.
Temperature regulation
Blocks harmful UV rays (ozone)
Contains the air we breathe
Nitrogen = 78%
 Oxygen = 21%
 Carbon = .04%

*plants need
carbon dioxide for
photosynthesis in order to produce
oxygen

2.
Thermosphere: hottest layer, very low
air pressure
Mesosphere: coldest layer (-100o C)
3.
Stratosphere: contains the ozone layer
1.
4.
5.
Troposphere: touches the Earth,
weather occurs here, water vapor, most
gas is present here
REMEMBER: The Moose Said Toot
 The
air is thinner which means
there is less oxygen to breathe
1.
2.
Troposphere, Stratosphere,
Mesosphere, and Thermosphere
 see your notes!
Ozone: an oxygen gas
containing three oxygen atoms
per molecule