Earth In Space Vocabulary Flashcards
Pattern
Something that happens over and over
Change in Perspective
A change in the scale or angle at which we are viewing some parts or all of the system.
Polaris
The North Star
Elevation
Angle of an object above the horizon
Solar
Related to the Sun
Daily (or Diurnally)
Happening once a day
Yearly (or Annually)
Happening once a year
Orbit (revolution)
Orbit (revolution)The motion of the Earth around the Sun
Axis
Earth’s axis is the imaginary line passing through Earth’s North Pole and South Pole.
Rotation
A spin on an imaginary axis
Insolation
The amount of incoming solar radiation that reaches the surface of the Earth.
Direct rays
Sunlight that hits the ground straight on (or at a 90° angle) and is spread out over a smaller area
Indirect rays
Sunlight that hits the ground at an angle and is spread out over a larger area
Elevation
Angle of an object above the horizon
Lunar Phases
The changing amount of sunlight we can see reflected off the moon toward Earth as the moon orbits Earth