Show:
Sun/Moon/Earth
Solar System
Stars
Galaxy/Universe
Vocabulary
100
point at which the Moon is closest to the Earth in its orbit
What is its perigee
100
Planets found closest to the Sun
What are terrestrial planets
100
Process occurring at the center of the Sun
What is Fusion
100
area where the oldest stars in our galaxy can be found
What is halo
100
amount of sunlight reflected off the surface of an object in our solar system
What is albedo
200
The phase in the moon cycle after the first quarter but before the full moon
What is waxing gibbous
200
Has the most extreme tilt of any planet in the atmosphere
What is Uranus
200
element found at the core of a white dwarf star
What is carbon
200
The Milky Way Galaxy is this type of galaxy
What is barred spiral galaxy
200
an asteroid that has made contact with Earth's surface
What is a meteorite
300
This is responsible for the seasons that are found on Earth throughout the year
What is the tilt of Earth on its axis
300
The two planets in our solar system that do not have moons that orbit them
What is Venus and Mercury
300
element found at the core of a massive star that would cause it to explode into a supernova
What is iron
300
Area of the milky way that our solar system is found
What is the Orion spiral arm
300
dark smooth regions of the Moon's surface
What is Mare or Maria
400
The phase of the moon cycle when we would be able to see a solar eclipse
What is the new moon
400
The motion of planets that was nearly impossible to explain using the geocentric model
What is retrograde motion
400
photosphere, chromosphere, corona
What are the layers of the Sun's atmosphere
400
Cluster of galaxies that contains the Milky Way and the Andromeda galaxies as well as many dwarf galaxies
What is the Local Group
400
The Moon spinning at the same rate that it takes for it to make one complete revolution around the Earth
What is synchronous rotation
500
The reason why the moon has such extreme fluctuations in temperatures found on its surface.
What is its lack of an atmosphere
500
Shooting stars
What are meteors
500
two stars orbiting a common center of mass
What is a binary star
500
First to provide evidence for the expansion of the Universe
Who is Edwin Hubble
500
State of matter found at the core of the Sun
What is Plasma