is a natural science that deals with the study of celestial objects.
What is Astronomy?
100
These people discovered the four seasons.
Who are the Athenians?
100
At night, these were used as a compass
What are stars?
100
This is an example of a Dwarf planet.
What is Pluto/Ceres/Eris/Makemake/Haumea?
200
The Earth, moon and planets travel under the influence of a single dominant force
What is Gravity/gravitation?
200
These people anticipated the flooding of the Nile by observing the rising of the star Sirius.
Who are the Egyptians?
200
These mark the beginning and ending of the four seasons.
What are equinoxes and solstices?
200
A group of stars forming a pattern that is traditionally named after its apparent form. An example of this is the Bear/Big Dipper.
What is a constellation?
300
A straight pole, set vertically in a flat, level patch of ground open to the sun's rays. Used to estimate the time of day.
What is gnomon?
300
He invented the theory of the planetary system (due originally to Plato's pupils) in which the sun and moon and planets ride on coupled transparent spheres centered on the earth.
Who is Aristotle?
300
An example of this is when referring to the Mediterranean, Homer mentions that it never bathes in the ocean.