Planets
Planet Makeup
Planets & Other Objects
Stars
More Stars Stuff
100
These are the 4 inner planets in order from the closest to the sun out.
What is Mercury, Venus, Earth, and Mars?
100
This element is found in all planet cores.
What is Iron?
100
This must be "big man" in the neighborhood, be round, and have nothing of anything close to its size nearby.
What is a planet?
100
Earth's closest star
What is the sun?
100
On the H-R diagram, blue means this
What is hot?
200
These are the Jovian planets in order from the sun
What are Jupiter, Saturn, Uranus, and Neptune?
200
The rocky planets are composed mainly of very high melting point metals. These also go by this other name which indicates their type of composition.
What is terrestrial?
200
When a meteor hits the Earth, it becomes this.
What is a meteorite?
200
The closest star to our sun?
What is Alpha Centauri?
200
Our is sun is considered to be this age
What is middle aged?
300
There are now this many planets
What is 8?
300
The gas planets are surrounded by these two light elements.
What are Hydrogen and Helium?
300
A region of space between the orbits of Mars and Jupiter where most of the asteroids in our solar system are found orbiting the sun
What is the Asteroid Belt?
300
The distance light can travel in one year
What is a light year?
300
There are 3 types - spiral, elliptical, and irregular
What are galaxies?
400
Name the gas planets in order from the sun
What are Jupiter, Saturn, Uranus, and Neptune?
400
The planets were formed about this many years ago.
What is 4.6 billion years ago?
400
Comets generally come from these two sources
What are the Kuiper Belt and the Oort Cloud?
400
The main fuel of stars
What is hydrogen?
400
This remains after a low mass or medium mass star dies.
What is a white dwarf?
500
This planet is the least dense of all planets in our solar system.
What is Saturn?
500
These are found near absolute zero in the outer planets
What are the ices, such as methane, ammonia, and water?
500
The part of the solar system in which the dwart planet, Ceres, can be found.
What is the Asteroid Belt?
500
Type of specific reaction that give stars their energy
What is nuclear fusion?
500
On the H-R diagram, 90 percent of all stars are considered to be this.
What are main sequence stars?
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