Download Earth in the Universe Answer each in your binder or notebook. Date

Earth in the Universe
Answer the following questions
on a separate sheet of paper
Question 1
A student observes the Milky Way galaxy in the
night sky. Which characteristic of the galaxy
makes it visible?
A. The galaxy’s stellar nebulae reflect the Sun’s
light.
B. Billions of stars in the galaxy carry out nuclear
fusion.
C. Tons of compressed matter begin to radiate
visible light from the galaxy center.
D. The galaxy spins at a speed that generates a large
amount of molecular friction.
Question 2
What type of galaxy is the Milky Way?
A. spiral
B. elliptical
C. irregular
D. oval
Question 3
Structures in the universe are grouped into large
systems, each of which are made up of smaller
systems. Which of the following is the largest
system of which Earth is only a very small
part?
A. Jovian planets
B. Halley’s comet
C. Milky Way galaxy
D. Orion’s belt
Question 4
Which number is closest to the estimated
number of stars in the Milky Way galaxy?
A. 200 thousand
B. 200 million
C. 200 billion
D. 200 trillion
Question 5
Scientists measured the patterns of spectral lines
given off by distant galaxies and concluded that
almost all of these galaxies are moving away from
Earth. What did the scientists observe directly?
A. a shift toward longer wavelengths of light
B. a shift toward shorter wavelengths of light
C. the absence of wavelengths in the visible light
range
D. the compression of wavelengths in the visible
light range
Question 6
Which object is a planet found in the Milky Way
Galaxy?
A. Orion
B. Earth
C. Polaris
D. Titan
Question 7
Classification of galaxies is based on which
characteristic?
A. the color of the galaxy
B. the shape of the galaxy
C. how many stars make up the galaxy
D. how many planets make up the galaxy
Question 8
A scientist is searching for areas where new solar
systems might form. What feature is the scientist
looking for?
A. a star similar to our Sun
B. a cloud of dust and gas
C. an oxygen-rich atmosphere
D. a gravitational acceleration of 9.8m/second
Question 9
In which structure is the Sun located?
A. Milky Way Galaxy
B. Andromeda Galaxy
C. Cat’s Eye Nebula
D. Horseshoe Nebula
Question 10
The known universe is made up of many smaller
components. Four of these components are listed
below.
Earth – Halley’s Comet – Milky Way Galaxy – Sun
Which of these objects is the largest?
A. Earth
B. Halley’s Comet
C. Milky Way Galaxy
D. Sun
Question 11
The universe is believed to be approximately 14
billion years old. As a result of gravitational
attraction, which most likely developed first
after the Big Bang?
A. a planet
B. a comet
C. a moon
D. a star
Question 12
Which statement is the best description of the
Milky Way galaxy?
A. a collection of gases held together by inertia
B. a group of planets revolving around a single
star
C. a collection of stars and gases with the Sun as
its center
D. a group of stars, dust, and planets held
together by gravity
Question 13
Classification of galaxies is based on which
characteristic?
A. the color of the galaxy
B. the shape of the galaxy
C. how many stars make up the galaxy
D. how many planets make up the galaxy
Question 14
Which theory about the origin of the universe
states that a densely packed sphere exploded,
forming clouds that condensed into galaxies?
A. the Galaxy theory
B. the Big Bang theory
C. the Steady State theory
D. the Oscillating theory
Question 15
Which list is correctly ordered from smallest to
largest?
A. galaxy – star – solar system – universe
B. universe – galaxy – star – solar system
C. solar system – star – universe – galaxy
D. star – solar system – galaxy – universe
Quest ion 16
The universe is believed to be approximately 14
billion years old. As a result of gravitational
attraction, which most likely developed first
after the Big Bang?
A. a planet
B. a comet
C. a moon
D. a star
Question 17
A scientific article about the universe
will most likely describe the universe as
A. consisting of billions of galaxies.
B. being less than two billion years old.
C. containing approximately ten planets.
D. becoming smaller over time.
Question 18
All galaxies in the universe
A. are composed of many stars.
B. have a clockwise spin.
C. are irregularly shaped.
D. have the same number of stars.
Question 19
Which statement about stars is not accurate?
A. A small group of stars is called a galaxy.
B. Stars consist mainly of hydrogen and helium.
C. Types of stars include red giants, super giants,
and dwarf stars.
D. Constellations of stars are found in different
places in the sky.
Question 20
Which theory states that the universe originated
as a single mass?
A. Big Bang
B. Steady State
C. Astronomical
D. Catastrophism
Question 21
Both Earth and Jupiter follow elliptical orbits
around the Sun. The orbit of Jupiter is farther
from the Sun than the orbit of Earth. How does
this orbit affect the motion of Jupiter compared
to Earth?
A. Jupiter rotates more slowly on its axis.
B. Jupiter revolves more slowly in its orbit.
C. The plane of the orbit of Jupiter varies more over
time.
D. The tilt of the axis of Jupiter is more
perpendicular to the plane of orbit.
Question 22
Which statement is the best description of the
Milky Way galaxy?
A. a collection of gases held together by inertia
B. a group of planets revolving around a single
star
C. a collection of stars and gases with the Sun as
its center
D. a group of stars, dust, and planets held
together by gravity
Question 23
Question 24
Which geometric term best describes the shape
of a planets revolution(orbit) around the sun?
a. Elliptical
b. Circular
c. Spheriodal
d. triangular
Question 25
Planet X and Planet Y are traveling around a star.
Planet X is closer to the star than Planet Y.
Which planet will take longer to go around the
star?
a. Planet X
b. Planet Y
c. Neither: They both will travel around the
same time