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Earth Science Units 1 and 2 Review Flashcards | StudBud
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Earth Science Units 1 and 2 Review
Earth Science Units 1 and 2 Review
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Earth / Environmental Science Unit 1 Review
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Why is it important to have the International System of Units (metric system)?
it can be used easily by scientists everywhere
it preserves the historical system of England
the units are based on variable objects
it uses the smallest possible numbers for all things
2
Which of the following would be shorter if the Earth rotated faster?
years
months
weeks
days
3
The major parts of the Earth system studied in this course are
hydrosphere, atmosphere, geosphere, and biosphere
hydrosphere, meteorology, atmoshpere, and asthenoshpere
hydrosphere, lithosphere, atmoshpere, and geosphere
hydrosphere, geosphere, lithosphere, and asthenosphere
4
What is the present theory about the origin of the Moon?
Earth's gravity trapped a huge asteroid
a large body struck the Earth and ejected the lunar material
it formed at the same time and in the same place as Earth
the Moon spun off from a rapidly spinning Earth
5
The scientific method is
a list of mathematical models used to solve problems
a set of numbers (units) scientists use
a series of logical steps scientists use in research
the same as the metric system
6
What binds a galaxy together?
light
stars
the Force
gravity
7
The gravitational attraction between two objects increases if
their volume decreases
the distance between them increases
the distance between them decreases
their volumes increase
8
How do the outer planets of our solar system differ from the inner planets?
they have no moons
they are rocky and solid
they have huge atmospheres
they have no atmoshpere
9
The lowest energy ray/wave in the electromagnetic spectrum is
x-rays
radio waves
visible light
gamma rays
10
What is the first step in the scientific method?
form a hypothesis
analyze data
conduct research
Ask a question or form a problem statement
11
What are negative results?
when you cannot control all variables
when others cannot duplicate your research
when your data does not support your hypothesis
when your experiment fails
12
Scientists think the Milky Way (our galaxy) is probably a(n)
spiral galaxy
nebula
irregular galaxy
elliptical galaxy
13
What variable is plotted on the y-axis of a graph?
independent
time
dependent
controlled
14
The basic unit for mass is
milligram
liter
meter
kilogram
15
According to the Big Bang Theory, the universe is about how old?
13.7 billion
4.5 billion
4.5 million
13.7 million
16
Much of the Earth's water came from
the Sun
comets
asteroids
the Moon
17
To which of the two main groups of planets does the Earth belong?
asteroidal
outer
gas giants
terrestrial
18
Why is it important for scientists to share their results as part of the scientific method?.
all of the above
So others can use thier data
so others can suggest changes
so others can duplicate their workI
19
The best type of experiment is one where you control all variable but one, this is called a(n)
control group
controlled experiment
variable experiment
observational experiment
20
The Earth is about ______ years old.
4.5 billion
13.7 billion
13.7 million
4.5 million
21
What planet is next in order after Jupiter if you are moving outward from the Sun?
Neptune
Mars
Saturn
Uranus
22
Why is it important for scientists to share their results as part of the scientific method?
All of the above
so others can replicate their work
So others can use their data
So others can suggest a next step
23
A preliminary, untested explanation that can be tested to see if it is accurate is a(n)
theory
law
fact
hypothesis
24
A controlled experiment tests
one variable
all possible variables in an experiment
many variables at once
complex data
25
One rotation of the Earth on its axis takes
about 30 days (one month)
365 days
24 hours
23.5 days
26
Changes in season are due to
interactions between the Sun and Moon
the distance from the Sun
the Earth's tilt changing solar energy as it orbits the Sun
changes in the Sun's axis as the Earth orbits around it
27
In what layer of the Sun is energy produced?
the photosphere
the chromosphere
the core
the convective zone
28
All stars produce all wavelength energy of the electromagnetic spectrum through the process of
nuclear fusion
nuclear fission
burning solids
gravity
29
The most studied of our neighboring planets is
Venus
Mercury
Jupiter
Mars
30
The Earth is tilted an average of _____ degrees on its axis.
66.5
23.5
0
90
31
Kepler's First Law of planetary motion states
Planets closer to the Sun move faster than ones farther away
planets move in elliptical orbits
Planets move faster when closer to the Sun
gravity hold planets in orbit, inertia keeps them moving
32
A cloud of dust and gas in space is called a
star
constellation
nebula
comet
33
Which of the following is the largest planet in the Solar System?
Saturn
Pluto
Earth
Jupiter
34
What type of graph is best for showing data or differences between distinct groups?
pie chart
scatter plot
line graph
bar graph
35
How did Hubble tell that other galaxies were moving away from ours?
changes in radio waves
gravitational changes caused by their movement
the blue shift in light from them
the red shift in light from them
