Life Cycle of Stars
Characteristics of Stars
Galaxies
Planets
The Sun
100
A cloud of dust and gas is called what?
Nebula
100
The color of the star determines what?
It's temperature
100
How many general types of galaxy shapes are there?
Three
100
How many true planets are in our solar system?
Eight
100
What process allows the sun to produce its energy?
nuclear fusion
200
All stars are born the same but die in different manners according to what?
Their mass
200
What are the two primary elements involved in nuclear fusion?
Hydrogen and Helium
200
What type of galaxy is this?
Spiral
200
What are the names of the four terrestrial planets?
Mercury, Venus, Earth and Mars
200
What spectral class is our Sun?
G class
300
What is the result when a massive star reaches the end of it's life cycle?
Supernova
300
What changing star features causes radio blackouts?
Coronal Mass Ejections
300
What type of galaxy is this?
Elliptical
300
What are the four gas giants?
Jupiter, Saturn, Uranus and Neptune
300
How long do scientists estimate our sun will remain a main sequence star?
Another 5 billion years
400
What is formed when a low mass star reaches the end of its life cycle?
White dwarf
400
What are the four characteristics of stars?
Color, brightness, temperature and size
400
How do elliptical galaxies form?
They form from spiral galaxies merging together
400
Which planet is the hottest?
Venus
400
What items in our solar system orbit the sun?
planets, moons, comets and asteroids
500
What only occurs in very massive stars at the end of their life cycle and has the power to remove light?
black hole
500
Using the Hertzsprung-Russel Diagram, which group of stars are the hottest in temperature?
Blue Main sequence stars
500
What word means matter that emits no wavelength at any light?
Dark matter
500
Which planet has the strongest winds and how strong are they?
Neptune and winds of nearly 2,000km/h
500
How many layers does the sun have and name all of the layers
It has 6 layers, 3 interior and 3 atmospheric,
Core, Radiative Zone and Convection Zone,
Photosphere, Chromosphere, Corona