Rotation/Revolution
Earth's Tilted Axis
Lunar Phases
Eclipses
Gravity & Solar System
100
This type of motion is the cause of day and night on Earth. It also is the reason the sun and stars appear to be moving in the sky when we know that they don't.
What is rotation?
100
This is one of the causes of the changing of seasons on Earth along with Earth's position relative to the sun.
What is the tilt of Earth's axis?
100
We can see the moon in the night sky because of this
What is the sun's light reflected off of the moon's surface?
100
an event in which the shadow of one celestial object falls on another celestial object
What is an eclipse?
100
This celestial object is small and icy with a trail
What is a comet?
200
This type of motion takes 365 days for one full cycle. It is responsible for the seasonal changes on Earth including the patterns of constellations.
What is revolution?
200
The equator receives this type of sunlight, which results in higher temperatures on average. 
What is concentrated sunlight?
200
This word means a lunar phase is growing
What is waxing?
200
This type of eclipse occurs when the shadow of the moon falls on Earth
What is a solar Eclipse?
200
Gravity is an attractive force that depends on these two things.
What are mass and distance?
300
An object in space that is not placed there by humans, such as the stars, the sun, the moon, and even the planets
What is a celestial object?
300
When it is Summer here in the Northern Hemisphere, it is this season in the Southern Hemisphere
What is winter?
300
This lunar phase occurs during a solar eclipse
What is a new moon?
300
This type of eclipse occurs when the Earth's shadow falls on the moon making it appear red
What is a lunar eclipse?
300
Most asteroids in our solar system are located within the asteroid belt, located between these two planets
What are Mars and Jupiter?
400
These constellations seem to be moving slowly from east to west in the night sky as time passes
What are seasonal constellations?
400
This type of sunlight is spread out over a larger area resulting in cooler temperatures
What is diffuse sunlight?
400
Lunar phases are caused by the amount of this visible from Earth
What is the sunlit part of the moon?
400
Red light from the sun is able to pass through Earth's atmosphere and shines on the moon, sometimes called this
What is a blood moon?
400
Astronomers use Astronomical Units (AU) to make this easier to observe
What is the distance between celestial objects?
500
This type of constellation lies above or below Earth's orbital plane and never seem to move.
What are circumpolar constellations?
500
The Earth experiences seasonal changes that occur in a yearly pattern such as these three things
What are temperature, length of day, and location of sunrise/sunset?
500
This is the reason astronauts are able to leap lightly on the moon as opposed to on Earth.
What is less gravitational force?
500
We don't have an eclipse every month mainly because of this reason.
What is the moon's tilted orbit?
500
These 3 things are required to be classified as a planet
What are directly orbiting a star, being nearly spherical, and clearing its neighborhood?