Stars
Planets
Comets
100
a luminous sphere of plasma held together by its own gravity
What is a star
100
The closest planet to the sun
What is mercury
100
what is the center of a comet made out of
What is ice
200
What is the closest star to earth?
What is the sun?
200
what is the biggest planet
what is Jupiter
200
Comet orbits are usually ___
What is elliptical
300
what color are most stars
red
300
how long is one Earth rotation
about 365 days
300
As a comet gets closer to the Sun, it begins to experience ___
What is heat
400
A group of stars that makes a recognizable shape or pattern
What is constellation
400
how many rings does Uranus have
13
400
how many tails does a comet have
two
500
what is in the center of a star
What is hydrogen and helium
500
how many moons does Neptune has
13
500
As a comet gets close to the Sun, it loses some of its ___
What is mass
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