The universe is.....
what is everything, all the matter and all the energy
A galaxy is defined as.
A large body in space that creates it own energy/light
What is a star?
These are found in a solar sytem
a star and the planets that orbit it
Planet that is closest to the sun
What is Mercury?
The exact age of the universe.
what is 13.8 billion years old or
13.8 x 109 years old
the number of galaxies thought to be in the universe.
Billions
The fuel of a star and the process by which the star creates its light.
What is hydrogen and nuclear fission
the age of our solar system
What is 4.6 billion years old or
4.6x109 years old.
The star that is the most similar to our sun in size, luminosity, color, and temperature
What is alpha Centauri?
The event that created the universe.
What is the name of the event that we think started the universe?
What is the big bang?
The galaxy we live in
What is the milky way
The Characteristic that determines what life cycle a star will go through
What is mass?
the force that keeps the planets in orbit around a star
What is gravity?
compared to the density of the terrestrial planets, the jovian planets are ......
What is less dense
two pieces of evidence do scientists have of the big bang?
what are
1). cosmic background radiation and
2). the red shift of distant objects
The type of galaxy that the milky way is: irregular, eliptical, spiral, or barred spiral.
What is a spiral galaxy.
describe our sun:
average, big, small, bright, dim, hot, cold, etc
What is pretty average
The name of the current model of the solar system
What is heliocentric.
the sun is at the center
What is Procyon B
The direction an object is moving is the spectral lines are shifted to to the red end of the spectrum.
What is moving away?
The force that helps to form a galaxy.
What is gravity
According to this star chart, a high mass star will end its life as a:
What is a neutron star?
This model of the solar system is called:

What is geocentric?
The planet that is closest in size (diameter) to Earth
What is venus