What did scientists learn about stars from their radiation?
Huge spheres of hot glowing gas, much like the sun.
100
ABOUT how many stars are in a galaxy?
A.) Millions
B.) Thousands
C.) Billions
D.) 4 1/2
C.)Billions
100
What are three characteristics of a star?
Size, Temperature and Brightness
100
What TYPE of galaxy do we live in?
Spiral Galaxy
100
What has a head, a tail, is brown, and has no legs?
A penny.
200
What is the one element that stars are mainly made of?
Hydrogen
200
How "hot" is a red star?
A.) 3,200 C
B.) 15,00 C
C.) 500 C
D.) 9,000 C
A.) 3,200 C
200
A star's temperature is directly related to its _____.
Color
200
What are the three main types of galaxies?
Spiral, Irregular and Elliptical
200
The more you have of it, the less you see. What is it?
Darkness.
300
How old is our sun?
4.6 billion years
300
What is the temperature of a blue star?
A.) 24,000 C
B.) 3,200 C
C.) 15,000 C
D.) 8,000 C
C.) 15,000 C
300
The colder a star is the more ___ it is.
Red
300
What exactly is a galaxy?
A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
300
I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?
The letter e. End, timE, spacE, Every placE
400
How is a star born?
Gravity pulls elements and gas together and is born as a star when the protostar becomes hot and creates nuclear fusion.
400
What is roughly the surface temperature of the sun in celsius?
6,000 C
400
The hotter a star is the more _______ the star is.
Blue
400
What happens when galaxies collide?
They would pass one through another without being much affected!
400
A man went to the hardware store to buy items for his house.
1 would cost $.25
12 would cost $.50
122 would cost $.75
When he left the store he had spent $.75, what did he buy?
House numbers.
500
How does a star die?
When the star runs out of fuel and the core no longer produces energy.
500
To figure out the density of a star you need the variables of ...