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PS U12 Vocabulary

Pantoja Science Unit 12 Vocabulary

TermDefinition
solar system made up of a star and the planets and other space objects that revolve around it.
Planet a large, round body that revolves around a star.
Dwarf Plaent nearly round bodies whose orbits cross the orbits of other bodies.
Asteroids rock and iron objects that orbit the sun
Comet a chunk of frozen gases, rock, ice and dust.
Astronomy the study of objects in space and their characteristics.
Stars huge balls of hot, glowing gases that produce their own heat and light.
Galaxy a group of billions of stars, the objects that orbit the stars, gas, and dust. It is held together by gravity.
Irregular Galaxies Irregular galaxies do not have any particular shape.
Elliptical Galaxies are brightest at their center and are shaped like a perfect sphere or a flattened globe.
Created by: rivas1964
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