Big bang
What is the big bang
this is the name of the huge explosion that started the universe
What is the name for a very young star that is still forming?
This would be called a protostar
when a red dwarf dies it becomes ...?
a white dwarf
This type of nuclear reactions splits a heavy nucleus into 2 small ones releasing energy.
This is fission
This is the main form of energy the sun emits that travels to earth
electromagnetic radiation
what is 13.8 billion years
scientists say the universe is about this many billion years old
what are super giants
they're very large and bright stars that have shorter lived lives and end in supernova explosions
in a nebula
In stars like the sun, this nuclear process combined nuclei to form heavier nucleus
fussion
This type of electromagnetic wavecarries most of the suns energy to earth
visible light
What is red shift?
the shift of galaxies toward longer wavelengths , the further the star the more red it gets
what is a white dwarf
it is a small, dense, leftover of a star
what is the 4th stage of a stars life
Red Giant phase
This particle is often released during nuclear decay,it has no charge and a small mass
This would be a neutron
energy from the sun travels through this even though its a vacuum
the big bang theory explains why the universe has a specific amount of atomic particles
what is a medium sequence star
a giant !
what is a Protostar
A protostar is a very young star that is still gathering mass from its parent molecular cloud
the chain reaction in a nuclear is controlled by these rods which absorb neutrons
control rods
this process describable how energy travels from the sun to earth without needing a medium
radiation
what is cosmology
this is the study of the big bang, it explores the universe origin and structure
What is a main sequence star?
a star that's in the stable, longest phase of its life,
what is a red giant
During the red giant state of a stars life,
The unit used to measure rate of radioactive decay.
becquerel
the average the is takes sunlight to reach earth from earth from the sun
8 mins and 20 seconds