Earth Science Semester 1 Final Exam (Answered)
What weakness does the following question have? How many alligators live in the Everglades National Park?
The question needs to focus more on a relationship instead of just numbers.
Scientific inquiry proposes explanations about the world through ...
Earth Science Semester 1 Final Exam
(Answered)
What weakness does the following question have? How many alligators live in
the Everglades National Park?
The question needs to focus more on a relationship instead of just numbers.
Scientific inquiry proposes explanations about the world through the use of
evidence
Suppose you want to model the way the human heart reacts to different levels of
exercise. What kind of model should you use?
interactive
Because models show us the relationships between parts of a whole, they help
us
form testable hypotheses
What type of model is a diagram of the core (inside) of the sun?
visualization
Suppose you have the following research question: How does low gravity affect
an astronaut's blood pressure? Without actually going into space to find out,
what kind of research method should you use?
stimulation
What type of research method would best answer the question "How many rivers
in Florida have nitrate pollution in them?"
field study
What type of study has as its goal to see how changes in one factor bring about
changes in another factor?
cause and effect
Scientific laws commonly answer which question about the world?
what?
Which of the following is an example of a scientific theory?
Matter behaves the way it does because it is made of atoms.
Which phrase is most similar in meaning to "scientific theory"?
a rigorously tested explanation
Which of the following could be an appropriate citation for an article with 3
authors?
Jones, et al., 2012
What type of graph displays the frequencies of events or traits?
histogram
Which variable type is placed on the y-axis of an x, y scatter graph?
dependent
Which of the following is an example of a trade-off?
something sacrificed in order to gain something else
What kind of research method is good for letting us see patterns in nature?
relational
, Which of the following is an example of discrete data?
the dog has 2 brothers
Where is the independent variable usually located in a scientific table?
first column
What type of research study is best for placing objects into categories?
comparison
Models help us develop testable hypotheses because models
show the relationships between parts of a whole
Gravity is...
a pulling force that exists between all objects in the universe
Which statement is true about a planet's orbital motion?
Orbital motion results when the object's forward motion is balanced by a second object's
gravitational pull.
As mass increases, the gravitational force
increases
How does distance affect the gravitational force?
The gravitational force decreases as distance increases
Radiation that is redshifted has the peaks of its waves
farther apart
Which statement is true about the Big Bang Theory?
it says that universe is expanding
The cosmic microwave background radiation
fills the entire background of space
Which of the following best represents the estimated age of the universe?
13.7 billion
A scientist discovers a star with three planets orbiting around it. This is an
example of a
planetary system
Which statement is true about the Milky Way Galaxy?
it is a spiral galaxy
Which of the following best describes the make up of a star?
a luminous ball of plasma
Stars are formed in which of the following?
nebulae
Which element forms from the fusion of hydrogen nuclei?
helium
The first element in the universe was
hydrogen
In the equation E=mc2, what does "c" stand for?
speed of light
What process marks the birth of a star?
when it begins combining hydrogen to form helium
A low-mass star is most likely to end its life cycle as a
black dwarf
Which of the following is an example of a main sequence star?
the sun
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