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3rd Unit 9 Space

TermDefinition
An imaginary line going through Earth from the North Pole to the South Pole. axis
The spinning of Earth. This causes the cycle of day and night. One rotation takes 24 hours, or 1 day. rotation
The changes in the height of ocean water. The pull of the moon's gravity causes this. tide
A medium-size star in our solar system. sun
The movement of Earth around the sun. This causes the cycle of seasons. One revolution takes 365 days, or 1 year. revolution
A ball of hot, glowing gases. star
A tool that makes faraway objects seem larger and closer. telescope
A star, such as our sun, and the planets that revolve around it. solar system
A large round body that revolves around a star in a clear orbit. planet
The cycle of the moon. New moon, 1st quarter, Full moon, 3rd quarter. phases
This tells how much light a star gives off. brightness
Mercury, Venus, Earth, and Mars inner planets
Jupiter, Saturn, Uranus, and Neptune outer planets
Separates the inner planets from the outer planets Asteroid belt
The inner planets are also known as this. terrestrial planets
The outer planets are also known as this. gas giants
Created by: mbeisert
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