All the gas giants' atmospheres are made up primarily of what two gases?
What is helium and hydrogen
100
What year was Pluto demoted to a dwarf planet?
What is 2006
100
Name the three parts of a comet
What is nucleus, coma, tail
100
A chunk of ice and dust whose orbit is usually a long, narrow ellipse is what?
What is a comet
200
The two planets that experience a greenhouse effect are
What is Venus and Earth
200
Neptune's blue color comes from what?
What is methane
200
Keeping in line with the mythological gods, Pluto is the god of what?
What is god of the underworld
200
A meteoroid that enters Earth's atmosphere, and through friction creates heat and produces a streak of light is called what? (hint: they burn up completely while in Earth's Atmosphere)
What is a meteor
200
Between Mars and Jupiter is a region of the solar system called the
What is asteroid belt
300
The inner planets are often called what? (hint: it is derived from the Latin word meaning Earth)
What is terrestrial planets
300
The Great Red Spot, a large storm, is located on which planet?
What is Jupiter
300
Pluto's orbit takes how many Earth years to make
What is 248 Earth years
300
What is the name of the largest known asteroid
What is Ceres
300
Clouds of gas and dust on a comet form a fuzzy outer layer called a
What is coma
400
The thick clouds of Venus are made mostly of droplets of what?
What is sulfuric acid
400
Name two things that the gas giants have that either the inner planets do not have at all, or they have very few of?
What is moons and rings
400
Pluto is part of which belt in our solar system? (spelling counts in the event of a tie!)
What is Kuiper belt
400
How many years ago did the last asteroid hit the Earth? (Hint: It is thought to have killed off the dinosaurs)
What is 65 million years ago
400
Name another dwarf planet other than Pluto
What is Eris, Makemake, Haumea, or Ceres
500
Venus's surface has more than 10,000 what?
What is volcanoes
500
Jupiter's four largest moons are larger than Earth's moon. Name as many of these four moons as you can.
What is Ganymede, Callisto, Io, Europa
500
Pluto's largest moon, Charon, was first observed in what year?
What is 1978
500
Most comets originate where?
What is the Oort cloud
500
A dwarf planet that orbits beyond Neptune is called a what?