Earth Science - 2nd Session Examination Flashcards
is cosmological model that explains how the
universe began. 13.8 billion years ago
Big bang theory
an area predicted
to be in the core of a black hole
with very high temperature and
density.
singularity
the first proponent of
the theory. He suggested the idea of
the expanding universe
Georges Henri Joseph Edouard
Lemaître
discovered that microwaves with
wavelengths of about 7
centimeters were present in space.
Arno Penzias and Robert Wilson
Despite the continuous expansion, the average density of the universe
remains the same;
Steady State Theory
proposed the steady
state theory in
1948.
Hermann Bondi,
Thomas Gold, and
Fred Hoyle
the universe is
expanding and will contract once all the energy after the big
bang has been used up, only to expand again once it
approaches the point of singularity.
Oscillating Universe theory,
occurs when the universe
expands and eventually reverses, then
collapses causing the formation of a
singularity.
big crunch
Tolman called the birth of another
universe as the
bigbounce
violates the law of conseration of mass
and energy.
steady state theory
states that the relationship of the velocities of distant objects
in the universe is directly proportional to their distance from Earth.
hubbles law
proponent of oscillating universe theory.
richard tolman
the solar system originated from
a nebula. 4.5billion years ago
nebular theory
giant cloud of gas and dust in space.
nebula
4 Terrestrial planets
Mercury, venus, earth, mars
4 jovian planets. These planets were formed
farther from the sun.
Jupiter, saturn, uranus, neptune
theorized that the development of human thought and
reason have had a great impact on other living things, leading to studies on
sustainability.
Vladimir Vernadsky
thorough study on the locations of plant, animal,
and geological specimens and their interactions led to the knowledge of
underlying processes such as the movement of heat in ocean currents, and
the effect of temperature on living things.
Alexander von Humboldt
introduction of uniformitarianism made it possible for
scientists to determine the history of Earth by studying rocks.
James Hutton
collaborated on the development of the
Gaia hypothesis, proposing that life regulates the temperature and chemical
composition of the soil and atmospher
James Lovelock and Lynn Margulis
was formed
by NASA in 1983.
An Earth System Science Committee
There are four primary subsystems of Earth:
atmosphere, geosphere,
hydrosphere, and biosphere
made up of various gaseous elements.
atmosphere
composed of all the soil, rocks, and minerals from
the surface of Earth up to its interior
geosphere
