4th Grade Solar System

16 terms by isabrina 

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rotation

the act of spinning around an axis

revolution

one complete trip around an object in circular or nearly circular paths

orbit

the path an object takes as it travels around another object

axis

a real or imaginary line that a spinning object turns around

phase

a temporary state of being, often used to describe a change in the appearance of the moon

gravity

a force of attraction or pull between all objects

meteor

a piece of rock, ice, or metal that burns up in the Earth's atmosphere causing a streak of light to appear in the sky

planet

a large sphere in space that obrits a star

solar system

the sun and all the objects that orbit around it

star

a hot sphere of gases in space that makes its own light

constellation

a group of stars that appear to form a pattern in the night sky

a blocking of the moon's light when the moon passes into Earth's shadow; happens when Earth is directly between the sun and the moon

lunar eclipse

a blocking of the sun's light that happens when Earth passes through the moon's shadow; at that time the moon is between the Earth and the sun

solar eclipse

apparent motion

the way something appears or seems to move; is not real motion ex:the sun appears to rise in the east and seems to set in the west

Jupiter, Saturn, Uranus, Neptune

Gas planets

Mercury, Venus, Earth, Mars

Rocky planets

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