Artificial satellite (noun): an object made by man which orbits the Earth.

(noun): the imaginary line round which a body (e.g. a planet) rotates. The Earth axis is tilted (inclined to one side)

Axis

Galaxy (noun): a large grouping of stars and their planets.

Milky Way (noun): our galaxy, the one which contains the Sun, Earth,

etc.

Orbit (noun): the elliptical path of a smaller celestial body around

a larger one.

(verb): the movement of a smaller celestial body around a larger one. (e.g. a planet revolves around a star, and a satellite around a planet.)

Planet / Satellite (noun): a celestial body orbiting a star.

(noun) : natural body or a man-made object that orbits a planet.

Star (noun): a huge ball of very hot burning gas, such as the Sun.

Solar System (noun): the Sun and the celstial bodies that orbit it, planets

and their satellites.

(noun): the process of making maps .

Cartography

(noun): a location and navigation system based on satellite information.

Global Positioning System(GPS)

Map. (noun): a flat representation of the Earth’s surface.

Map projections. (noun): ways that cartographers represent the Earth on a

map.

Remember: when cartographers try to flatten the Earth for a map projection, distortions in terms of shape, distance, direction, or land area are inevitable.

Scale. (noun): the relationship between teh real size of a particular

area of the Earth and its size on a map.

Coordinates. (noun): numbers used to give the exact location of a persona

or place on the Earth.

Meridian. (noun): an imaginary line that divides the Earth’s surface

from pole to pole.

Greenwich MeridianPrime Meridian.

(noun): The meridian, at 0º longitude, that is the reference point for all other meridians. It divides the Earth into the Western and Eastern Hemispheres.

Longitude. (noun): the distance between a place on the Earth’s surface

and the Greenwich or Prime Meridian.

Parallel. (noun): an imaginary line that encircles the Earth

horizontally.

Equator. (noun): the imaginary line that encircles the Earth

horizontally and divides it into the Northen and Southern Hemispheres. It is the parallel at 0º latitude.

Latitude. (noun): the distance between a place on the Earth’s surface

and the Equator.

(noun): one of two equal halves of a planet.

Hemisphere.