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TELL ME WHY. UNIT 37

UNIT 37 – WHY IS PLUTO NO LONGER CONSIDERED A PLANET?

DEFINITIONTERM
Any natural object in space, such as a planet, moon or asteroid. celestial body
Recognition as an official planet. planetary status
A celestial body that orbits the Sun but does not meet all the criteria to be a planet. dwarf planet
To classify something again under a different category. reclassify
A standard used for making a judgement or decision. Criterion (pl:criteria)
Shaped like a sphere or ball. spherical
A region beyond Neptune containing many icy bodies. Kuiper Belt
A frozen body in space made mainly of ice and rock. icy object
The layer of gases surrounding a planet. atmosphere
A natural satellite orbiting a planet. moon
A vehicle designed to travel in outer space. spacecraft
To travel close to a planet or object without landing. fly past
Nitrogen that has become solid because of extreme cold. frozen nitrogen
The path followed by a celestial body around another object. orbit
Created by: e_teacher
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