1
The outer layers of a red giant keep expanding until they eventually drift off and form a ________________ _________________.
2
This is what 90% of stars in the sky are, they fall out of balance when all the fuel has been used up.
3
This star is very small and trememdously dense and marks the end of the super giants life cycle. It has a strong magnetic field, a very fast spin, and is about 1.4 times the mass of the sun- it is called a __________ __________.
4
a white dwarf that has cooled down in temperature, is invisible because it no longer emits light.
5
Eventually the outer layers of an average star drift away and the star becomes a much smaller ________ ________. It has now run out of nuclear fuel to burn off.
6
Come from giant massive stars. They grow to as much as three the mass of our sun as they lose he nuclear fusion at their core. The outer layer of this red star expands as the core contracts.
7
At the end of the life of a giant star, a ____________ is resulted when a red supergiant's core collapses in on itself. The electrical forces at the center of the star overcome the greavitational pull and create a massive explosion that scatters the outer layers of the red supergiant.
8
The dying stage of a star, they become larger and this color due to the decrease in temperature.,
9
this is the starting point of a star's birth, lasting about 100,000 years, mainly made up of helium and hydrogen particles, with a relatively low temperature.
10
Nebula can form either an ___________ star that is about the size of a massive star which can be over three times as big as our Sun! These stars stay in this period for most of their lives and they convert Hydrogen to Helium while generating lots of heat and light.
11
If the star is very massive or big enough, a _____ ________ is formed, which is so dense that not even light can escape the gravitational pull.
12
clouds of dust and gas which a star first forms. They are pulled together by gravity into spinning discs. The center of the disc becomes a star while the rest can become a system of planets.
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