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solar system
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Review activity for Sci. Chapter 7 solar system 6th grade
Flashcards
25 cards
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Practice quiz
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Host live
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Questions
25
Answers
1
Pluto is an example of a(n)
outer planet
dwarf planet
planetismal
inner planet
2
A meteorite is a meteoroid that reaches the Earth's surface.
True
False
3
Why is Pluto is no longer considered a planet?
It is not big enough.
It broke off of another planet.
It is too far away from the sun.
It has not cleared its orbital path.
4
In which part of the sun does nuclear fusion occur?
corona
core
chromosphere
convection layer
5
What feature is shared by all the inner planets?
liquid water
rocky surface
ring system
thick atmosphere
6
The inner planets formed in a hot area where ice could not form.
False
True
7
On the gas giants, the temperature increases as you get closer to the core.
False
True
8
From what region do most comets come?
Oort cloud
Kuiper belt
inner solar system
Asteroid belt
9
All of the gas giants are surrounded by
aliens
a system of rings
radon gas
thick atmosphere
10
Which planet's orbit is farthest from the sun?
Neptune
Jupiter
Saturn
Uranus
11
Why is Venus the hottest surface of any planet?
It moves slower than the other planets
It has a thick atmosphere that traps heat
It has more direct sunlight than other planets
It is closest to the sun
12
What characteristic do all the outer planets share?
They have many moons.
They are larger than the sun.
They have thin atmospheres.
They have rocky surfaces.
13
Kepler discovered that planets move in
parallel orbits
boxes
elliptical orbits
spherical orbits
14
What model of the solar system is shown
Ancient Greek Model
Heliocentric Model
Geocentric Model
Superstar Model
15
An astronomical unit is
15 million miles
the distance from the Earth to the sun
10,000 miles
the distance from the Earth to the asteroid belt
16
Which planet has a day that is longer than its year?
Venus
Uranus
Pluto
Mars
17
Most asteroids are less than a kilometer in diameter.
True
False
18
Why is Uranus is tilted about 90 degrees on its axis?
It does not have enough gravity to stay upright.
It collided with a large body.
Its gasses cause an unusual shape.
The gravity of its moons pulls it to a tilt.
19
The outer planets are mostly made of dense solids.
True
False
20
What object is at the center of a geocentric system?
Earth
A star
The sun
The moon
21
Which layer of the sun has the highest density?
corona
photosphere
core
radiation zone
22
Where are most dwarf planets found?
Oort clould
Asteroid belt
Kuiper belt
Plutoid belt
23
Which is
not
a characteristic of a planet?
It must be rounded by gravity.
It must orbit the sun.
It must be further than 1 AU from the sun.
It must have cleared its orbital path.
24
Relatively cool areas on the sun's surface are called what?
cool pools
auroras
sunspots
solar flares
25
Which of these are caused by solar winds
magnetic storms
auroras
prominences
hot flashes
