Inner Planets
These are the inner planets in order from closest to the sun, to furthest from the sun
What is Mercury, Venus, Earth, and Mars?
This is the order of the four (4) outer planets, from closest to the sun, to furthest from the sun.
What are Jupiter, Saturn, Uranus, and Neptune?
This is a large chunk of ice and dirt that orbits the sun in a very uneven ellipse. Pieces sometimes fall to Earth.
What is a comet?
This is the process that fuels our sun.
What is nuclear fusion?
The sun began when this collapsed
What is a (solar) nebula?
This word for the inner planets means "earth" or "dirt"
What is terrestrial?
This name for the outer planets denotes their size and composition.
What are the gas giants?
The name of a chunk of space matter that has been found on Earth
What is a meteorite?
These features are caused by the sun's strong magnetic field
What are sun spots?
The sun will turn into a red giant when it runs out of this gas:
Life on the surface of this planet would be difficult because of a crushingly heavy atmosphere and sulfuric acid rain
What is Venus?
These two planets both have more than 60 moons each
What are Jupiter and Saturn?
This is a huge chunk of rock left over from the formation of the solar system. Most of these orbit in a belt between the inner and outer planets.
What is an asteroid?
The completely ionized gasses in the center of the sun are in a state called this
What is plasma?
After becoming a red giant, OUR sun will become this.
What is a white dwarf?
This planet orbits extremely fast with a 1408 hr day (~58 earth days) and a 2110 hr year (~88 earth days)
What is Mercury?
These two planets appear blue because of methane (CH4) in their atmosphere.
What are Uranus and Neptune?
Where do comets come from?
What is the Oort Cloud?
The sun represents this % of our solar system's mass.
What is 99.8%?
When massive star forms iron, it will become one of these two things.
What is a neutron star or a black hole?
Dried river and lake beds are evidence that water once flowed on the surface of this planet, which still has frozen ice caps
What is Mars?
This planets spins at and almost 90 degree angle from its orbit, with some calling it "the sideways planet"
What is Uranus?
This area of our solar system is home to dozens of dwarf planets, asteroids, and meteors.
What is the Kuiper Belt?
This feature of the sun blew most of the gas into the outer region when the solar system first formed, leaving the terrestrial planets behind
What are solar winds?
Where do all of the elements heavier than iron (#26) come from?
What is exploding stars / supernova?