number of years that pass before the additional day is added
What is 4?
100
name the four seasons
What is winter, spring, summer, autumn (fall)?
100
imaginary line that passes through Earth's center at the magnetic poles on which the Earth spins
What is axis?
200
Movement of Earth around the Sun
What is revolution?
200
problem with the Egyptian calendar
What is there were 5 extra days at the end?
200
month the extra day is added
What is February?
200
cause of the seasons...be VERY specific
What is the Earth tilted at 23.5 degrees?
200
spinning motion of Earth on it axis
What is rotation?
300
The cause of summer in the northern hemisphere
What is the axis tilted toward the sun?
300
Civilization that fixed the Egyptian calendar
What is the Romans?
300
next leap year
What is next year (2012)?
300
climate on Earth if there were no tilt of the axis
What is there would be no seasons change; the temperatures would remain fairly constant everywhere on Earth year round b/c the power of the sun's rays would never change?
300
movement of one object around another object in space (Earth moves around the Sun.)
What is revolution?
400
point when the northern hemisphere is furthest from the sun
What is June?
400
the person fixed the Roman calendar and when he fixed it
What is Pope Gregory XIII in 1582?
400
mathematic reason for the leap year
What is that the Earth takes 365 1/4 days to revolve around the sun, so in order to gain the full extra day; they Earth must revolve 4 full turns in order to make a whole?
400
relationship between solstices and equinoxes and the seasons
What is they mark the start of each season?
400
two days of the year on which the sun reaches its greatest distance north or south of the equator...starts summer or winter
What is solstice?
500
There would be no seasons
What is if the Earth was not tilted on its axis?
500
problem with the Roman calendar
What is there were 11 extra minutes that eventually added up to 10 extra calendar days?
500
the reason the extra day is added to the calendar rather than letting time just change
What is to ensure that annual events, such as the summer solstice happen on the same date each year?
500
explain why the distance the Earth is from the sun has no connection to the change in seasons
What is the Earth is at its furthest point from the sun during the northern hemisphere's summer?
500
two days of the year on which neither hemisphere is tilted toward or tilted away from the sun