earth and space quiz
what would an astronomer mostly study
a comets path through the solar system
an example of a nonbiodegradable waste product is
a plastic milk jug
the big bang theory states that the galaxies in the universe are moving
away from one another
the explosion that scientists think created the universe is called the
big bang
the discovery f background radiation distributed evenly throughout the universe provided support for the
big bang theory
the largest ecosystem is called the
biosphere
what is the ecosystem that encompasses all other ecosystems
biosphere
what is the largest ecosystem
biosphere
when heated, each element produces a series of thin colored lines called a
bright line spectrum
a spectroscope is most likely to be used to determine stars what
chemical makeup
eratosthenes used careful observation and simple geometry to determine what
circumference of the earth
a spectroscope is most likely to be used to determine a stars
composition
scientist proposed the meteorite-impact hypothesis to explain the extinction of the
dinosaurs
the apparent shift in the wave lengths of energy emitted by an energy source moving away from or toward an observer is known as the
doppler effect
the apparent shift in the wavelengths of energy emitted by an energy source moving away from or toward an observer is known as the
doppler effect
the relationship between plants and animals in a lake would most likely by studied by a what
ecologist
the study of the complex relationships between living things and their environment is called
ecology
a bright line spectrum uniquely identifies each
element
the earths circumfrence was first determined accurately by
eratosthenes
the discovery of red shift in the spectra of galaxies provided evidence that the universe is
expanding
the red shift observed in a distant galaxys spectra is evidence for the
expansion of the universe
it is thought that before the big bang all the matter and energy in the universe was in the form of one
extremely small volume
T/F a controlled experiment usually tests several variables at one time
false
T/F a hypothesis must be tested before any observations can be made
false
T/F a scientific law is a rule for conducting scientific experiments
false
T/F according to the big bang theory, all galaxies in the universe are moving toward the earth
false
T/F as a light source moves away from an observer, the wavelengths of the light will appear shorter to the observer
false
T/F biodegradable wastes pose a major threat to the environment
false
T/F biodegradeabale wastes pose a major threat the environment
false
T/F controlled experiments have confirmed the meteorite-impact hypothesis
false
T/F exploration for oil deposits would be done most likely by an ecologist
false
T/F galaxies in the universe are moving closer together
false
T/F iridium is a common element found in earth rocks
false
T/F meteorology is the study of the earths oceans
false
T/F most plastics are biodegradeable
false
T/F once a scientific law is well established, it becomes a theory
false
T/F proposing a hypothesis is usually the first step when following scientific methods
false
T/F rock layers containing deformed quartz grains provide important evidence for the big bang theory
false
T/F scientific research always follows the sequential steps called scientific methods
false
the study of the solid earth
geology
a possible explanation for a scientific problem is called a
hypothesis
a possible explanation of or solution to a problem is called a what
hypothesis
a scientists possible explanation of or solution to a problem is called a
hypothesis
the meteorite-impact hypothesis is supported by the existence of layers of rock containing high levels of???
iridium
the development of the meteorite-impact hypothesis began with the observation of
iridium in earths rocks
a rule that consistently describes a natural phenomenon is known as a scientific
law
a statement that consistently and correctly describes some natural phenomenon is a scientific
law
a theory that is well-established through research and experimentation is most likely to become a scientific
law
what is an important means of gathering information
making a measurement
comparing some aspects of an object with a standard unit is called what
measurement
scientist believe that the iridium found in some rock layers may originally have come from what
meteorite
scientists believe that the iridium found in some rock layers may originally have come from a
meteorite
the earth scientist most likely to study storms is
meteorologist
what is most likely to to study rainfall trends
meteorologists
the discovery of a red shift in the spectra of galaxies provided evidence that the universe is
moving
the ozone in the upper atmosphere is a form of
oxygen
evidence for the big bang theory includes
red shift in the spectra of galaxies
the meteorite impact hypothesis is one explanation for the discovery of high iridium levels in what
rocks
a theory that is well established through research and experimentation is most likely to become a
scientific law
a well established and proven theory is most likely to become a
scientific law
scientists determine the speed at which galaxies travel by examining the degree of red
shift
scientist have found that as a light source moves toward a stationary observer, the wavelengths of the light source appear
shorter
when a light source is moving toward an observer, the wavelengths of light appear
shorter
when a light source moves toward an observer the light waves appear to be
shorter
scientists studying starlight determine what elements are present in the stars by using a
spectroscope
sunlight is made up of a mixture of different-colored light called the
spectrum
when light passes through a glass prism, it produces a band of colors called the
spectrum
the first step in using scientific methods to solve a problem is to what
state the problem
usually the first step in scientific problem solving is to
state the problem
background radiation distributed evenly throughout the universe probably resulted from
the big bang
background radiation evenly distributed throughout the universe likely resulted from
the big bang
the apparent change in the the wavelengths of a moving energy source is called
the doppler effect
the amount of red shift in the light emitted by a galaxy is most likely to be used to determine
the speed at which the galaxy is traveling
a hypothesis or set of hypotheses supported by the results of experimentation and observation is called a
theory
T/F a hypothesis may be based on facts established through experimentation
true
T/F a kilogram is a standard unit of measurement
true
T/F an astronomer studies the universe beyond the earth
true
T/F an ecosystem is a largely self supporting, physically distinct system
true
T/F an ecosystem is a largely self-supporting, physically distinct system
true
T/F astronomy is a branch of earth science
true
T/F background radiation is thought to be energy left from the big bang explosion
true
T/F controlled experiments have confirmed the meteorite-impact hypothesis
true
T/F dust raised by the impact of a meteorite on earth may have blocked the suns rays for many years
true
T/F earth science includes the study of oceans
true
T/F earth scientists primarily study the geosphere
true
T/F earth scientists study the geosphere
true
T/F ecology is a field of study that unites earth science and biology
true
T/F eratosthenes used shadows and simple geometry to calculate the circumference of the earth
true
T/F exploration for oil deposits would most likely be done by an ecologist
true
T/F in order for a theory to become a law, it must be proven correct every time tested
true
T/F meteorology is a major area of study within earth science
true
T/F nearly three-fourths of the earths surface is covered by oceans
true
T/F one way scientist state a problem is by asking questions based on observations
true
T/F plants produce food through the process of photosynthesis
true
T/F scientific methods are guides to scientific problem solving
true
T/F scientists believe that at one time an abnormally high amount of dust may have formed a cloud over the earth
true
T/F scientists have simulated climatic conditions on a computer to help explain the extinction of the dinosaurs
true
T/F the atmosphere is one part of the geosphere
true
T/F the big bang theory proposes that all the matter and energy in the universe was once compressed into an extremely small volume
true
T/F the physical environment of the earth supports the biosphere
true
T/F the wavelength of red light is longer than that of a blue light
true
T/F when a chemical element is heated enough, it produces a bright line spectrum
true
the ozone layer in the atmosphere shields the earth from the suns what
ultraviolet rays
a controlled experiment is designed to test a single factor called a
variable
it is thought that before the big bang all the matter and energy in the universe was in the form of one extremely small what
volume
are oceans part of the biosphere
yes
