Show:
A Star is Born
Our Sun
Death of a Star
Star Pot-Luck
Constellations
100
What force squeezes the gases in a nebula together until they explode into a new star?
GRAVITY!
100
What is the closest star to the earth?
The sun
100
Before a star starts to die, it runs out of _____________
gas/fuel
100
What galaxy is our slar system in?
the Milky Way
100
What does an Astronomer study?
the Stars
200
What gas does a star burn as fuel?
Hydrogen
200
How far away is the sun from the earth?
93 million miles
200
After a Supernova, gravity crushes what's left over and leaves a mysterious object in space that's called_______________.
a black hole
200
What color are the hottest stars? blue? Yellow? red?
blue
200
What do you call an imaginary way of grouping stars?
Constellations
300
How do scientists think the universe began?
With a Big Bang!
300
Our sun is about 5 billion years old. About how many more years will it live?
5 billion The sun has used up half of its life
300
When our sun dies it will swell up and become a ___________________ before it swallows up Mercury and Venus?
a red giant
300
Why do the stars look they they move in the sky each night?
The earth's rotation on its axis
300
How many constellations are in our sky?
88
400
The middle of a star is called its
Core
400
What size of a star is our sun?
small? medium? large?
400
In the end our sun will become a small, cold, dark object in space called______________________
a white dwarf
400
What tool would you use to look at the stars in space?
telescope
400
How do birds and sailors use constellations?
They use them to find direction, to find their way
500
Hydrogen burns in a star and changes into what new gas?
Helium
500
Why does the sun seem brighter than all the other stars in the sky?
The sun is closer to the earth.
500
When stars bigger than the sun die, they explode into a huge __________________________
Supernova
500
Where in space could you find an Event Horizon and gavity so strong that nothing can escape?
black hole
500
What is the fastest thing we know of?
Light