simulation,
model the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)
globe -
an object with a spherical shape; "a ball of fire"
A globe is a three-dimensional scale model of Earth (terrestrial globe) or other spheroid celestial body such as a planet, star, or moon. It may also refer to a spherical representation of the celestial sphere, showing the apparent positions of the stars and constellations in the sky (celestial globe). The word "globe" comes from the Latin word globus, meaning round mass or sphere.
OmegaWiki Dictionary
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globe The third planet (counted from the center) of our solar system.
globe Round three-dimensional body whose surface has at each point the same distance from the center.
globe Small sphere which represents the planet Earth.
globe A sphere on which a map (especially of the earth) is represented.
