Stars
What color are the hottest stars?
Blue
What is a galaxy?
A huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
What is the Big Bang Theory?
The idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
Cool, dark areas on the Sun’s surface that have lower temperatures than surrounding areas are called what?
Sun Spots
Which planet has a Giant Red Spot that is due to a storm larger than Earth?!
Jupiter
As the Earth spins, the constellations _______.
A. Move in the opposite direction
B. Seem to move, but do not
C. Move with it
B. Seem to move, but do not
What type of galaxy is our Milky Way Galaxy?
A spiral
The farthest galaxies are moving away _______ than the ones close to us.
Faster
What are the 3 layers of the sun's atmosphere?
Photosphere, Chromosphere, Corona
Which planet is tilted on its axis and spins on its side?
Uranus
What type of star is our Sun?
Main Sequence
Galaxies that are smooth and oval shaped are called what?
Elliptical
How old is the universe?
13.8 Billion Years Old
What do we call the visible surface of the sun?
Photosphere
Which planet has the highest surface temperature?
Venus
HR Diagrams categorize stars based on what two factors?
Brightness (Luminescence) and Temperature
Name the 4 types of galaxies.
Spiral, Elliptical, Irregular, Quasars
When the universe began, it was just hot, tiny particles mixed with ______ and _______.
Light and Energy
Which layer of the Sun surrounds the radiative zone and is where energy moves as flowing cells of gas?
Convection Zone
Name the 4 outer planets (Gas Giants)
Jupiter
Saturn
Uranus
Neptune
What type of stars are Brighter?
Super Giants or White Dwarfs
Super Giants
What does our Milky Way galaxy have in the middle of it?
A supermassive black hole!
What telescope(s) help us continue the study of galaxies?
The Hubble and/or the James Webb
What reaction takes place in the Sun's core, creates the immense temperature of the sun, and releases vast amounts of energy.
Nuclear Fusion
Which planet has the most moons?
Saturn (146!)