Nebula Theory
Stars
Star Magnitude
Star Life Cycles
Planets
100
A nebula is a large cloud of dust, rock, and _______.
What is gas
100
The coolest stars are this color
What is red
100
The greater the magnitude of the star, the ___________ the number.
What is smaller
100
All stars start as these
What is a Nebula?
100
Small, rocky planets are called _________ planets
What is terrestrial
200
Nebula are made of this simplest element
What is Hydrogen
200
The hottest stars are this color
What is blue
200
The brightest star in the sky
What is the sun
200
Stars "turn on" when this happens in the core
What is nuclear fusion?
200
Large, less dense planets are called ______ ________.
What is gas giants
300
Eventually enough gravity forces gas together causing this to happen
What is nuclear fusion
300
Inside stars, hydrogen fuses together to form this element
What is helium
300
How bright a star looks from Earth is called this
What is apparent magnitude
300
Our Sun, like most stars, is in this stage of its life
What is main sequence?
300
The largest planet
What is Jupiter
400
Nebulae form these large groups of stars
What is galaxies
400
A group of stars viewed from Earth are called this, often based on Roman mythology
What are constellations
400
How bright a star really is
What is absolute magnitude
400
When small stars die, they lose their outer shell and only this small kernel remains
What is a white dwarf?
400
Planets orbit the sun in this shape
What is an ellipse
500
Nebulae are more easily viewed from space telescopes because this isn't in the way
What is Earth's atmosphere
500
Some stars die, collapse in on themselves, and form this, from which no light can escape
What is a black hole
500
We generally measure the distance to stars using this unit of measurement
What is light year
500
Massive stars either become black holes or these super dense objects
What is a neutron star?
500
There are this many planets in our solar system
What is 8
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