Words to Explore for Mystery Class
( Introduction | Words | Diagrams 1| Diagrams 2)

local address

 global address grid system
coordinates location measurement
degrees latitude longitude
degrees latitude degrees longitude point of reference
north east south
west meridians Prime Meridian
International Date Line poles North Pole
South Pole Equator Tropic of Cancer

Tropic of Capricorn

 Arctic Circle Antarctic Circle
hemisphere Northern Hemisphere Sourthern Hemisphere
Eastern Hemisphere Western Hemisphere parallel
intersecting axis tilt
rotation revolution equinox
solstice Vernal Equinox Summer Solstice
Autumnal Equinox Winter Solstice daily cycles
yearly cycles day length photoperiod
zero latitude zero longitude time zones
local time Greenwich England Greenwich Mean Time (GMT)
Universal Time (UT) daylight savings time military time