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The Solar System
Test Description: Astronomy and Space Chapter 3
Instructions: Answer all questions to get your test result.
1) In a heliocentric system, Earth revolves around
A
the sun
B
the moon
C
the stars
D
Mars
2) The fact the each planet's orbit is an ellipse was discovered by
A
Copernicus
B
Kepler
C
Brahe
D
Galileo
3) Small asteroid-like bodies that became the building blocks for the planets
A
comets
B
planetesimals
C
open clusters
D
meteoroids
4) What layer are you looking at when you look at an image of the sun?
A
chromosphere
B
photosphere
C
prominence
D
corona
5) The solar wind is a stream of electrically charged particles that extend outward from the sun’s ________.
A
corona
B
chromosphere.
C
core
D
photosphere
6) What do the four outer planets have in common?
A
They are much larger than Earth and are made mainly of hydrogen and helium.
B
They are about the same size as Earth and are made mainly of iron.
C
They are much larger than Earth and are made mainly of iron.
D
They are about the same size as Earth and are made mainly of hydrogen and helium.
7) What do all of the inner planets have in common?
A
They all have many moons.
B
They all are small and have rocky surfaces.
C
They all have abundant liquid water.
D
They all have rings.
8) Most ancient astronomers thought that all celestial objects revolved around
A
stars
B
Earth
C
each other
D
sun
9) The _________________________ consists of the sun, eight planets and their moons, and several kinds of smaller objects.
A
milky way
B
core
C
solar system
D
asteroid belt
10) Jupiter’s Great Red Spot is a(n) _________________________ larger than Earth.
A
moon
B
sun spot
C
storm
D
birth mark
11) A meteoroid that hits Earth’s surface is called a(n) ____________________.
A
crater
B
meteorite
C
comet
D
shooting star
12) Which set of planets are in the correct order?
A
Mercury Venus, Saturn, Mars, Earth, Uranus, Jupiter, Uranus, Neptune
B
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
C
Venus, Mercury, Mars, Earth, Jupiter, Saturn, Neptune, Uranus
D
Mercury, Venus, Jupiter, Saturn, Mars, Earth Uranus, Neptune
13) The region of the solar system between Mars and Jupiter is the
A
asteroid belt
B
milky way
C
planet cloud
D
big dipper
14) _________ are loose collections of ice, dust, and small rocky particles.
A
comets
B
moons
C
polar ice caps
D
meteors
15) One _______ _______ equals the average distance between Earth and the sun, about 150,000,000 kilometers.
A
astronomical unit
B
dwarf planet
C
solar system
D
astronomy mile
*select an answer for all questions
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