14 terms

6G Unit 2

STUDY
PLAY
astronomy
The study of the universe and everything in it
universe
All of space and everything in it
galaxy
A giant cloud of stars and other objects (may contain billions of solar systems)
solar system
A group of planets and other objects that orbit around a star.
star
An object that is at the center of a solar system and gives off its own light.
planet
An object that orbits a star
moon
An object that orbits around a planet
gravity
A force that pulls any two objects together
(depends on MASS and DISTANCE between the objects)
revolution
The motion of an object around another object.
year
The time it takes an object to complete its orbit (revolve once)
rotation
The motion of an object spinning on its axis
day
The time it takes an object to rotate once on its axis
lunar eclipse
When the shadow of the Earth blocks the sun's light from reaching the moon
Occurs during: Full moon
solar eclipse
When the Moon passes directly between the Sun and Earth and casts a shadow over part of Earth
Occurs during: New moon
YOU MIGHT ALSO LIKE...