It takes this long for the moon to revolve completely around the Earth.
What is 29 days or about a month?
100
This is imaginary dome in which stars appear think of it as your "bubble."
What is a celestial sphere?
100
This word describes the Earth spinning continuously.
What is "rotating"?
200
This imaginary line goes from the North Pole to the South Pole of the Earth and rotates on.
What is Axis?
200
This is the heightest point the sun reaches which happens around lunchtime.
What is a Solar Noon?
200
These are the names of the two phases where we see half of the Moon but we don't call these half moons.
What is the first quarter and third quarter moon?
200
This is the point directly overhead for an observer.
What is the zenith?
200
These imaginary lines go North to South and help us determine the time for a region.
What are time zones?
300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300
The sun path is largest during this season.
What is Summer?
300
During this process, the moon moves through the Earth's shadow.
What is a lunar eclipse?
300
This is direction in which all celestial objects we see in the sky take from rise to set.
What is East to West?
300
This is the term we use to describe stars that appear to revolve around Polaris.
What is circumpolar stars?
400
These two phenomena prove Earth's rotation one involving an object swinging and the Earth moving underneath and the other involves the deflection of the wind right for the North and left for the South.
What is the foucault pendulum and the coriolis effect?
400
This occurs when the moon moves between the sun and the Earth, blocking some the the sun's light.
What is a "solar eclipse"?
400
This is a tide where the Earth, Moon, and Sun are aligned in a straight line creating the highest of the high tide and the lowest of the low tide.
What is a spring tide?
400
This is the rate at which the Earth rotates and all objects in sky seem move by.
What is 15 degrees per hour?
400
These are the two terms we use to describe the amount of the moon that is lit or shaded.
What is "waning" and "waxing"?
500
Evidence of Earth's revolution can be obsevered from these three things. Hints: Summer, constellation of Scorpio, and red shift.
What is seasonal changes, different constellations per season, and slight changes in the doppler effect of stars?
500
These are the areas of latitude where the sun is overhead.
What is the Equator, Tropic of Cancer, and Tropic of Capricorn?
500
This tide is where the Earth, Moon, and Sun create a right angle and this causes the lowest of hightides and highest of low tides.
What is a neap tide?
500
This is when the outer planets appear to move "backwards" when an inner planet passes.
What is Retrograde motion?
500
These are models of our solar system one believing it was Earth centered and the other Sun centered.