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Gr. 6 Q4 Sequence 3

How are objects in space related and what impacts this relationship?

TermDefinition
Light Year A unit of length equal to the distance that light travels through space in one year
Astronomical Unit (AU) A unit of length measuring the distance from Earth to the Sun.
Universe All of space and the matter space contains
Astronomical Bodies Objects such as planets, moons, and stars, that are located in space
Nebulae Vast clouds of dust and gas that are pulled together by gravity and eventually give Birth to Stars
Star A huge ball of gas that produces its own energy, mostly through nuclear reactions in its core
Planet Object that orbits a star and are round due to their own gravity
Dwarf Planets An astronomical body that orbits the sun, has enough mass to assume a nearly round shape but has not cleared the neighbordhood around its orbit
Moon Matter that orbit planet and asteroids in our solar system
Asteroid small, rocky objects that orbit the sun and are smaller than planets
Comet a large object made of dust and ice that orbits the sun and has a long, streaming tail
Galaxy Made of millions of stars, interstellar gas, and dust held together by gravity
Popular Earth Science sets

 

 



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