Download - Components of the Spheres
Components of the Spheres
By Deandra M., Matthew R., Justin H., and Erin S.. Geosphere
Geosphere Geo means Ground so basically the ground is the
location
Includes the Earth's interior,rocks and minerals, landformsand the
processes that shapethe Earth's surface. Interactions of the
spheres : Geosphere Changes in the Geosphere are based on
physicalevidence such as rocks, fossils, and land forms Core- makes
up 16% of the volume of the earthand 31% of mass. It is divided
into 2 regions :Solid inner core and liquid outer core. Mantle-
largest layer in the earth 82% of volumeand 68% of mass dominated
by magnesium andiron-rich minerals Crust- the thinnest layer in the
earth only 2% ofvolume and 1% of mass. Tectonic plates- The dozen
or so plates that makeup the surface of the Earth. Their motion is
studiedin the field of plate tectonics. Hydrosphere Hydrosphere
Liquid water component of the Earth
Covers about 70% ofEarth 3 % of total water is freshwater, and only
1% of thisis attainable The hydrosphere isalways in motion
Hydrosphere Salinity and temperature of the water affect
motion
Warm/fresh water = less dense,rises to top Cold/salt water = more
dense,sinks down Acts as reservoir for chemicalsand gases Limits
how fast climates canchange Distributes heat to entire globe
Cryosphere Cryosphere The Solid Water or Ice part of the
earth
Antarctica The Arctic Circle The composition of the cryosphere is
water. Just. Water. Glaciers form sedimentary rock style, except,
youknow, ice. Glaciers are melting due to global warming and
thiscauses flooding, icebergs, and loss of habitat. Permafrost is a
permanently frozen layer below thetopsoil Global Warming causes
permafrost to melt whichcauses the freshwater permafrost supports
to sinkbelow the surface Mid-Presentation Questions
What is the difference between tectonic plates and plate tectonics?
How does the Hydrosphere affect climate? How are Glaciers formed?
Atmosphere Introduction to Atmosphere
Gaseous layer of the Earth, formed 4 billion years ago. Started off
with water vapor, carbon monoxide, carbon dioxide,hydrochloric
acid, methane, ammonia, nitrogen, and sulfur gases. The lack of
free oxygen caused the atmosphere to reduce. Water vapor eventually
rained down forming bodies of water. The bodies of water became
home to the first organisms which beganreleasing oxygen, thus
oxidizing the atmosphere. Structure 71% Nitrogen, 28% Oxygen, 1%
Water vapor, argon and carbondioxide. Troposphere, Stratosphere,
Mesosphere, and Thermosphere layers. The layers Troposphere- the
lowest layer of Earth's atmosphere and site of allweather on Earth.
Stratosphere- the layer of the earth's atmosphere above the
troposphere,extending to about 32 miles (50 km) above the earth's
surface (the lowerboundary of the mesosphere). Mesosphere- the
region of the earth's atmosphere above the stratosphereand below
the thermosphere, between about 30 and 50 miles (50 and 80km) in
altitude Thermosphere- the region of the atmosphere above the
mesosphere andbelow the height at which the atmosphere ceases to
have the properties ofa continuous medium. The thermosphere is
characterized throughout byan increase in temperature with height.
Biosphere Biosphere Everything that contains life
Includes atmosphere, lithosphere,hydrosphere, etc. Erosion and
deforestation impacteverything within the biospheregreatly.
Basically, people are messing up the partof the world that has life
Biomes The biosphere consistsof several biomes, eachwith different
climatesand abiotic/biotic factors Desert Deciduous Forest
Rainforest Grassland Tundra Taiga Savanna Salt Water Fresh Water
Post-Presentation Questions
What are the layers of the atmosphere? What two issues affect the
biosphere greatly? Name at leastfour biomes.