Vocab1
Define Astronomy
The study of the stars, planets, and other celestial bodies
Define reflect
bouncing back light off of a surface from another source
What systems do scientists divide space into?
Solar system, galaxy, universe
Define Galaxy
a collection of stars, their solar systems, dust, and gas
Define Solar System
a system of objects in space that includes at least one star, planets and their moons, asteroids, comets, and other debris
What is a planet?
a large natural object that orbits around stars
Who was Nicolaus Copernicus, and what was he famous for?
Answer describes heliocentric and geocentric theories
Define universe
What is a Moon Phase?
the repeating, predictable patterns of change in the moon's appearance from Earth
the oval shaped path an object follows as it revolves around another object in space
Name the planets in increasing order from the Sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
How does Earth move in space?
Describe its rotation on a tilted axis, revolution around the Sun, and its distance from the Sun
What is gravity?
a force that pulls objects toward each other
Define revolution
an object's orbital motion around another object
What is a Lunar Eclipse
the moon passes directly behind Earth into its shadow
Name the steps to the Scientific Method in order
Define constellation
a group of stars that forms a recognizable pattern in the sky
Define rotation
the action of rotating around an axis
What is a Solar Eclipse
the moon's shadow blocks all or some of the Sun's light from reaching Earth