Stars
Stars are huge spheres of...
plasma
Tthe stars and everything that orbits them is called a:
star system
What is the center of a star called?
the core
What are stars born as?
nebula
{...} are so massive they can fuse through their fuel faster
high mass stars
What is responsible for the star’s spherical shape?
gravity
The sun’s {...} formed around 5 billion years ago.
stellaer siblings
What part of a star can preform nuclear fusion?
the core
In a nebula, the gases will start to clump together due to {...}
gravity
Low mass stars will eventually cool to become cold, black stars made of {...}
helium
What is the process that involves smaller atoms fusing to make heavier atoms that happens in the core of a star?
nuclear fusion
Why do we call our star system the solar system?
Because of Sun, which is called Sol
What area in a star is where energy radiates outward from the core?
radiative zone
During the life of a star, it will fuse elements together, making {...} elements.
heavier
What fuses at a slower rate and may live for billions of years?
low mass stars, or red dwarfs
Plasma is highly {...} conductive.
Electrically
What are star systems with more than one star in them called?
binary star system
What layer of a star transports heat away from the core towards the outer layers of the star?
convective zone
What element do stars stop fusing elements at?
iron
If the star’s is about 3-8 times the mass of the Sun, then the core collapses into a:
neutron star
Nuclear fusion releases a lot of energy that we see as {...} from the star.
light
What is the closest star system to us?
Alpha Centauri
What layer of a star can we actually see?
photosphere
What attracts more mass, creating a hot, dense core in a star?
spinning disk
The gravity of high mass stars at a single point is so intense that light, the fastest thing in the Universe, cannot escape and it creates a:
black hole