Chapter 13: Earth, Moon, & Sun Flashcards
sun
The star at the center of our solar system.
rotate
To spin on an axis
axis
An imaginary line that passes through Earth’s center and its North and South Poles
revolve
To travel in a closed path around another object
orbit
The path one body takes in space as it revolves around another body
equator
An imaginary line around Earth equally distant from the North and South Poles
moon
Any natural body that revolves around a planet.
crater
A low, bowl-shaped area on the surface of a planet or moon
moon phase
One of the shapes the moon seems to have as it orbits Earth
eclipse
An event that occurs when one object in space passes through the shadow of another object in space
refraction
The bending of light as it moves from one material to another
star
A huge ball of very hot gases in space
solar system
A star and all the planets and other objects that revolve around it
constellation
A pattern of stars named after a mythological or religious figure, an object, or an animal
planet
A body that revolves around a star
