Numbers
What is the tilt of the Earth's axis?
What important Earth "thing" happens on Dec 21?
Winter solstice
What important line runs north-south through Greenwich, England?
Prime Meridian
When is the Earth closest to the sun?
Northern hemisphere winter
What are "foci" in the eccentricity equation?
The two dots around which an ellipse is drawn
What is the maximum latitude?
90 degrees
When does New York State experience about 16 hours of daylight?
June 21
Between June and August, New York State experiences summer. Where on the Earth is winter being experienced at this time?
Southern Hemisphere
How old is the Earth?
4.5 billion years
To the right
Over the course of half a year, the location of the sun's direct rays changes by how many degrees?
47 degrees (23.5 + 23.5)
On what day is the sun directly overhead (at noon) of the Tropic of Cancer (23.5 N)?
June 21
The number increases ("backwards")
How is latitude related to Polaris?
Angle of Polaris above the horizon is the latitude in the northern hemisphere
How does wind blow around a high pressure system?
Out and clockwise
At what rate does the Earth rotate on its axis?
15 degrees per hour
What event happens on March 21?
Vernal Equinox
The standard "storm track" in the United States causes storms to travel in what general direction?
E to NE
What is a contour interval?
The distance/value between isolines
What is "field value" in the gradient equation?
Whatever you are interested in
At what rate does the Earth orbit the Sun?
1 degree per day
On what day do all locations on Earth have the same number of hours of daylight?
Autumnal Equinox (Sept 22), and Vernal Equinox (Mar 21)
What locations experience 24 hours of darkness around the northern hemisphere's summer solstice?
Anywhere south of the Antarctic Circle (66.5 S)
How is latitude related to the angle of the sun?
90 degrees minus angle of sun at noon on equinox
What direction does the Earth orbit the sun?
Counterclockwise