Circumpolar constellations __________.
|A)||appear to circle around the North Star as the Earth rotates.|
|B)||are always located above the North Pole.|
|C)||never appear around the North Pole.|
|D)||are located in a circular constellation.|
When a star becomes a supernova its brightness __________.
What holds planets, stars, gas, and dust together in a galaxy?
The Moon orbits Earth and Earth orbits the Sun. What does the Sun orbit?
|A)||It doesn't orbit.|
|B)||the Milky Way|
|C)||the solar system|
Fusion occurs when __________ and __________ combine to make energy.
Prominence, or huge arching columns of gas, are thought to be caused by__________.
|A)||Earth's magnetic field|
|B)||the rotation of the galaxy|
|C)||the magnetic field associated with sunspots|
|D)||the Sun's rotation|
Energy produced by the sun reaches the Earth through _________.
|D)||convection and radiation|
Particles that escape from the sun's __________ move through space as solar wind.
What does CME stand for?
|A)||Coronal Mass Emissions|
|B)||Central Mass Ejections|
|C)||Coronal Materials Ejections|
|D)||Coronal Mass Ejections|
The North Star,___________, is positioned almost directly over the North Pole.
__________ is the process that creates energy in the sun.
Astronomers use a star's __________ to determine how far it is from Earth.
Another way to define "nebula" is __________.
The __________ __________ is a measure of the amount of light received on earth.
Once stars run out of hydrogen and the temperature begins to increase, these stars are said to be __________.
|D)||a white dwarf|
Which, if any, of the three types of galaxies occur the most often?
|D)||They occur in equal amounts.|
A binary system is composed of ___________ stars.
Our sun is considered a star of__________ temperature.
The __________ __________of a star is a measure of the amount of light it gives off.
An aurora, like the aurora borealis is caused by
|C)||particles from solar flares|