NASA - National Aeronautics and Space Administration

This is a detailed scale model of Galileo, the first spacecraft to orbit Jupiter. Image Credit: NASA

      a copy of something, often smaller than the original object

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Sentences:
David has a model of the space shuttle hanging in his room.

My dad likes to make model cars and airplanes.

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More Information:
http://spaceplace.nasa.gov/en/kids/cassini_make1.shtml   →
http://sse.jpl.nasa.gov/kids/papermodels.cfm   →
http://www.nasa.gov/audience/forstudents/k-4/playandlearn/paper-comet.html