Stars
Galaxies
Comets,
Asteroids, and Meteoroids
The Big Bang Theory
Life Cycle of Stars
100
Which contains more stars on average, a globular cluster or an open cluster?
What are globular clusters
100
This hold groups of stars, such as galaxies, together
What is gravity
100
A small, rocky body orbiting the sun
What is a meteorid
100
According to the big bang theory, the universe began how many years ago with a huge explosion
What is 10 billion to 15 billion
100
Smaller stars tend to live ______ than larger stars
What is longer
200
The majority of stars in our galaxy are ______ -blue -white dwarfs -main-sequence stars -red giants
What are main-sequence stars
200
In which part of a spiral galaxy do you expect to find nebulas
What are the spiral arms
200
The main difference between meteoroids and asteroids
Meteoroids are smaller than asteroids
200
The universe is filled with ______ coming from all directions in space
What is radiation
200
Stars die when their supply of _____ run out
What is gas
300
A cluster of stars forms in a nebula. There are red stars, blue stars, yellow stars, and white stars. Which stars are most like the sun?
What are yellow stars
300
Many of these galaxies may have their gravity distorted by neighboring galaxies
What is irregular galaxy
300
This is where you would most likely find asteroids
What is the asteroid belt between Mars and Jupiter
300
If there is enough matter in the universe it may do what?
What is stop expanding outward and start collapsing
300
Stars form within vast clouds of dust called _______
What is nebulae
400
Which would be seen as the brightest star in the following group? a. Alcyone- apparent magnitude of 3 b. Alpheratz- apparent magnitude of 2 c. Deneb- apparent magnitude of 1 d. Rigel- apparent magnitude of 0
What is Rigel
400
You visited an observatory and looked through the telescope. You saw a ball of stars through the telescope. What type of object did you see?
What is a globular cluster
400
How are the orbits of comets different from the orbits of planets
Planets have more circular shaped orbits Comets have highly elliptical orbits
400
In the early moments of the universe, some of the expanding energy turned into matter that eventually became the ______
What is the galaxies
400
The way a star dies depends on its ______
What is mass
500
Individual stars are moving in space. How long will it take to see a noticeable difference without using a telescope?
What is 100,000 years
500
Explain the difference between elliptical galaxy and spiral galaxy
An elliptical galaxy is composed mostly of older stars, and it contains very little dust or gas. It is shaped like a sphere. A spiral galaxy has a bulge with cooler stars;spiral arms with hot blue stars, gas, and dust; and a halo of stars and globular clusters
500
This is when scientists think asteroids originated
What is during the formation of the solar system
500
Explain the difference between big bang and cosmic background
Big bang occurred when all the matter and energy of the universe suddenly expanded The cosmic background radiation is the radiation coming from all directions in space. It may be evidence of the big bang
500
The left over centers of old stars
What are white dwarf stars
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