Stars
What color are the coldest stars?
Red
What is the name of the nearest star?
The Sun
Supernovas are brighter than a galaxy. True or false.
True
Around 75% of the sun is made up of hydrogen. True or false?
True
What happens at the end of a stars life cycle?
It becomes a supernova?
What is a Corona?
The outer layer of the Sun
What is a supernova?
An explosion
Only one thousand Earths can fit in the Sun. True or false?
False, over 1 million Earths can fit in the Sun
Name 2 other space objects that may look like a star
Asteroids and planets
What is a sunspot?
A cooler spot on the sun
When does a supernova happen?
At the end of a stars life cycle
Why do we get burnt from the Sun and not other stars?
Because the Sun is closer to the Earth and emits UV radiation
What is a star made up of?
Hydrogen and helium
What is the amount of of time our sun will burn?
5 billion years
A supernova occurs approximately every year. True or false?
False, it occurs approximately every second
What is a core?
Hydrogen and helium combine---nuclear fusion
What gas from a star burns up
hydrogen
What is a Coronal Mass Ejection?
When the Suns gaseous layer can releases up to 20 billion particles into space
Why do supernovas occur?
It happens when a star can't take any more nuclear fuel and gravitational force
What are 2 gases that make up the sun or any other stars?
Hydrogen and helium