What are stars?
The fourth state of matter.
What is plasma?
We refer to our star system as the solar system because our star, the Sun, is called what?
Stars have many layers. It has been compared to this vegetable which also possesses many layer.
What is an onion?
Stars are born in this.
What are nebulae?
The name for low mass stars.
What is a red dwarf?
Lightning and neon signs are other examples of this.
What is plasma?
There are star systems with more than one star. If there are two stars what is it called?
What is a binary star system?
This is the only part of the star hot and dense enough for nuclear fusion to take occur.
What is the core?
Nebulae are so large their dimensions are measured in what?
What are light years?
When the star can no longer fuse heavier elements, the outer layers of gas will blow away from the center forming a planetary nebula leaving behind what is remains of the star.
What is a white dwarf?
This is an incredibly dense object, about the size of a large city, made of tightly packed neutrons.
What is a neutron star?
This is the closest star system to us?
What is Alpha Centauri?
This is the area in which energy radiates outward from the core.
What is the radiative zone?
In a nebula, the gases will start to clump together due to this force.
What is gravity?
If the star’s is about 3-8 times the mass of the Sun, then the core collapses into this.
What is neutron star?
Due to its large mass, a star has a very strong force of what holding it together.
What is gravity?
How many planets have been discovered in the star system Alpha Centauri?
What is 3?
This third layer from the center of the star.
What is the convective zone?
A nebula will form many stars. It name is similar to star daycare.
What is a stellar nursery?
Low mass stars will eventually cool to become cold, black stars made of this element.
What is helium?
This process involves smaller atoms, like hydrogen, fusing (joining together) to make heavier atoms, like helium, lithium and carbon.
What is nuclear fusion?
The sun’s “stellar siblings” would have also formed around how many years ago?
What is 5 billion years ago?
Currents transport heat away from the core towards which layers of the star.
What is the outer layers?
After thousands to millions of years, when the core is hot and dense enough nuclear fusion begins and births this.
What is a star?
Average mass stars, like our Sun, live for this many years.
What are billions?