To
Instead of kilometers or miles, what do astronomers use for distances in space?
Astronomical Units (AU)
What object is made of gas, dust, and ice and orbits beyond Neptune?
comets
keeps the planets in orbit around the
Gravity; Sun
Callisto, Io, Europa
Jupiter
Where are all the dwarf planets located besides one?
Kuiper Belt
Which planet doesn't have an atmosphere?
Mercury
Which planet is the hottest due to its greenhouse effect?
Venus
Which planet has the most moons?
Saturn
Titan, Dione, Iapetus
Saturn
What is the only dwarf planet located in the asteroid belt?
Ceres
Which planet has a longer rotational period than orbital period?
Venus
Which planet spins like a barrel?
Uranus
What moon in the solar system is larger than Mercury?
Titan
Titania, Oberon, Ariel
Uranus
Which dwarf planet has rings?
Haumea
Where is the largest mountain in the solar system?
For double points, what is it's name?
Mars
Olympus Mons
Which planet has an average distance from the Sun of 1.52 AU, the compound iron oxide present in its surface, and carbon dioxide ice caps?
Mars
Which planet rotates the fastest?
Jupiter
Triton, Hippocamp, Thalassa
Neptune
Hydra, Nix, Charon are Moons of what dwarf planet?
Pluto
What 2 gases make up most of the outer planets?
Hydrogen and Helium
Pallas, Ida, and Eros are all examples of what space object?
asteroid
What is the main difference between something being considered a planet vs a dwarf planet?
Planets have a much larger mass than dwarf planets
What are the names given to the moons: Io, Europa, Ganymede and Callisto?
Galilean Moons
What year was Pluto stripped of its planetary status?
2006