| Arctic Circle |
an imaginary line drawn around the earth parallel to the equator which marks the boundary of the Arctic. North of this line there are periods of continuous night in the winter and continuous day in the summer. |
| December |
the twelfth month of the year. December has thirty-one days. Winter begins in December for people who live north of the equator. |
| equator |
the imaginary circle around the earth that is halfway between the North and South Poles. The equator is represented by a line that goes around the middle of a globe. |
| equatorial |
from, near, or on any equator. [2 definitions] |
| Equatorial Guinea |
a country near the equator on the west central coast of Africa, between Gabon and Cameroon. The capital of Equatorial Guinea is Malabo. |
| equinox |
either of the two times during the year when the sun's rays are perpendicular to the earth's equator, occurring in March and September. During the equinox, day and night are both 12 hours long all over the world. |
| hemisphere |
either of two halves of the earth. A hemisphere is formed by dividing the earth into the Northern and Southern Hemispheres at the equator, or into the Eastern and Western Hemispheres at a meridian. [1/2 definitions] |
| June |
the sixth month of the year. June has thirty days. Summer begins in June for people who live north of the equator. |
| latitude |
the distance between the equator and a point north or south on the earth's surface. This distance is measured in degrees. |
| March |
the third month of the year. March has thirty-one days. Spring begins in March for people who live north of the equator. |
| Nauru |
a Pacific island country slightly south of the equator and northeast of New Guinea. The capital of Nauru is Yaren. |
| Northern Hemisphere |
the half of the earth that is north of the equator. |
| parallel |
any of the imaginary lines that circle the earth in the same direction as the equator. Parallels mark degrees of latitude. [1/5 definitions] |
| September |
the ninth month of the year. September has thirty days. Autumn begins in September for people who live north of the equator. |
| solstice |
either of the two times in the year when the sun is furthest from the celestial equator, occurring in June and December. |
| Southern Hemisphere |
the half of the earth that is south of the equator. |
| tropical |
of, having to do with, characteristic of, or happening near the equator. |
| Tuvalu |
an island country in the central part of the Pacific Ocean. Tuvalu lies south of the equator and north of the country of Fiji. The capital of Tuvalu is Funafuti. |