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Solar System Sun
Inner Planets
Outer Planets
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Row 1, Col 1
What is the difference betweenthe geocentric vs. heliocentricmodels of the universe? Who
proposed the heliocentric model?
Geocentric is Earth-centered/heliocentric is Sun-centered=Copernicus
2,2
How does our Sun produce its energy?What two elements are involved?
DD
Nuclear Fusion/Hydrogen atoms combined to form heavier helium atoms
2,3
Which planet is consideredEarth’s twin? Name two ways
these two planets are alikeand two ways they differ
Venus
2,4
Each of the gas planetsare surrounded by a set of rings.What are these “rings” made of?
Particles of ice and rock
3,1
How are meteors, meteorites,and meteoroids different?
Meteorites=on Earth/Meteoroids in space/meteors=burn up in our atmosphere
3,2
What is the outer most layer of the Sun’s atmosphere called?
Why is it called this?
Corona/it looks like a crown
3,3
Which inner planet has almost no atmosphere?
Why?
Mercury/ so close to Sun causes gas molecules to move
very fast and escape and so small weak gravity
4,1
If an object in space is said to have anelliptical orbit, what does it mean? Name oneobject in space that has a very elliptical orbit
Elongated circle, or narrow oval/Comets
4,2
What causes the auroras in the night sky? What else canthis feature of the Sun cause
to happen?DD
Solar Winds/Solar (magnetic) storms
4,3
Name three reasonsMars would be difficult to
colonize?
Temperature, thin atmosphere=liquid H2O would turn into gas, Co2 atmosphere,
4,4
What are at least two conditionsthat a planet must possess inorder for it to be considered
a planet?
Massive enough to have become spherical, orbit the Sun, has too many “friends” in its neighborhood that it has not
captured….
5,1
Where are most comets found?How are comets different from
asteroids?Name the three parts of a comet
Kuiper belt and /or Oort cloud
Size, orbits, what they are made from
Head(coma+nucleus)Tail
5,2
What exactly is a sunspot?Name two features
that sunspot regions often create. Describe what they are.
Cooler regions on the sun’s surface/Prominences, flares
5,3
What causes Mars to haveseasons? Why is Mars
called the “red” planet?
Tilted axis and revolution around Sun / iron oxide covers its surface