| A | B |
|---|
| geography | study of earth and its people |
| absolute location | exact spot where a place is found (involves latitude and longitude coordinates) |
| relative location | description of where a place is in relation to the features around it |
| environment | natural surroundings of people |
| decade | a period of 10 years |
| millennium | period of 1000 years |
| century | a period of 100 years |
| Global Positioning System | group of satellites that uses radio signals to determine the exact location of places on Earth |
| Geographic Information System | combo of computer hardware and software used to gather, store, and analyze geographic info and display it |
| solar system | planets, along with their moons, asteroids and other bodies, and the sun |
| orbit | specific path each planet follows around the sun |
| revolution | one complete circuit around the sun |
| leap year | year with 366 days; happens every 4th year to make calendars match Earth's movement around the sun |
| rotate | to spin on an axis |
| axis | imaginary line that passes through the center of Earth from N. Pole to S. Pole |
| atmosphere | layer of oxygen and other gases that surrounds Earth |
| summer solstice | day that has the most daylight hours and fewest hours of darkness |
| winter solstice | day of the year that has fewest hours of sunlight and the most hours of darkness |
| equinox | either of the days in spring and fall when noon sun is overhead at Equator and day and night are of equal length |
| Tropics | between Tropic of Cancer and Tropic of Capricorn; generally warm temps b/c it receives direct rays of sunlight much of the year |
