Sun
Planets
Astronomers
objects in space
Misc.
100
Areas of gas on the sun that are cooler than the gas around them.
What are Sunspots?
100
The four terrestrial planets are know for having this similarity.
What are rocky surfaces?
100
He developed the Heiliocentric (sun-centered) system of planets.
Who is Copernicus?
100
The flash of light made by a meteorid passing through Earth's atmosphere.
What is a meteor?
100
Conditions Just right for supporting life, must have water, a favorable atmosphere, and an appropriate temperature range.
What is "Goldilocks conditions"
200
Loops of gas on the sun that link different parts of sunspot regiions.
What are prominences?
200
Venus has this type of rotation. It rotates from east to west.
What is retrograde rotation?
200
According to Isaac Newton, the planets stay in orbit because of these two laws of motion.
What are gravity and inertia?
200
Found inbetween the orbits of Mars and Jupiter.
What is the asteroid belt?
200
This is the cause of the extreme temperature range on Mercury (430*C in the day to -170*C at night).
What is having a thin or almost no atmosphere?
300
stream of particles produced by the sun's corona.
What is solar wind?
300
Often considered a double planet.
What are Pluto and Charon?
300
A planet would travel out into space without this law of motion.
What is inertia?
300
Made of ice and dust with a bright head and long narrow tail.
What is a comet?
300
Without this law of motion a planet would travel out into space.
What is gravity?
400
Explosions that occur when gas on the surface of the sun becomes extrememly hot.
What are solar flares?
400
Europa, one of Jupiter's moons, may have this below it's surface that could support life.
What is water?
400
A planet will go into the sun without this force.
What is inertia?
400
Meteorids that entered our atmosphere and hit the Earth with out burning up completely.
What are Meteorites?
400
Meteoroids generally come from these.
What are comets and asteroids?
500
The process that changes H into He under extreme heat and pressure and is where the sun's energy comes from.
What is nuclear fusion?
500
The large four gas giants.
What are Jupiter, Saturn, Uranus, and Neptune?
500
Kepler and Brahe's observations show the orbits of the planets travel in this shape.
What are ellipises?
500
Chunks of rock or dust in orbit that are too small and too numerous to be thought of as planets
What are asteroids?
500
The effect a planet's mass has on its gravitational pull.
What is a smaller mass has less gravitational pull and a larger mass has a greater gravitational pull?
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