Solar System
The Inner Planets
The Outer Planets
Moons
Extra “Space”
100
The theory of how solar systems are formed is known as this
What is the Nebular Theory?
100
The “Earth-like” inner planets are called this
What are terrestrial planets?
100
The “Jupiter-like” outer planets are called this
What are Jovian planets?
100
Jupiter has this many moons (that we know of)
What is 28 moons?
100
A giant cloud of gas and dust
What is a nebula?
200
Almost all the mass (99.85%) of our solar system is contained in this object
What is the Sun?
200
This planet is known as “Earth’s Twin”
What is Venus?
200
This furthest planet takes 248 years to orbit the sun
What is Pluto?
200
The moon Titan belongs to this planet
What is Saturn?
200
An object in space with so much gravity that not even light can escape it
What is a black hole?
300
All the planets orbit in this direction
What is counter-clockwise?
300
This planet has the greatest temperature extremes of any planet
What is Mercury?
300
This “sideways” planet appears to roll because its axis of rotation is parallel to its orbit
What is Uranus?
300
The name of Neptune’s largest moon
What is Triton?
300
Most asteroids lie between the orbits of these two planets
What are Mars and Jupiter?
400
These are small, irregular shaped bodies of rock and collide together to form planets
What are planetesimals?
400
The atmosphere on Mars is mainly made up of this gas
What is Carbon Dioxide?
400
The giant cyclonic storm on Jupiter that has been there for more than 300 years is called this
What is the Great Red Spot?
400
This is the name of Pluto’s only moon
What is Charon?
400
The term for a theoretical “tunnel” through space that can be used to travel huge distances fast
What is a wormhole?
500
A planet’s ability to hold an atmosphere depends on these two factors
What are mass and temperature?
500
This volcano on Mars is over 2.5 times taller than Mount Everest
What is Olympus Mons?
500
Saturn’s rings and its four largest moons were discovered by this famous Italian astronomer
Who is Galileo?
500
The moon Phoebe exhibits this strange motion during its orbit that appears to change direction
What is retrograde motion?
500
The min and max distance from a star that can support liquid water and life is known as this
What is the “Habitable Zone” or “Goldilocks Zone”?
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