Vocab 1
The path an object follows as it moves around another object
the large, dark, flat areas on the Moon
maria
the central, darker part of a shadow where light is totally blocked
umbra
the process of combining nuclei of atoms to create large amounts of energy that creates energy for the Sun
nuclear fusion
Object revolving around the Earth due to Earth's gravity
Moon
The motion of one object around another object
revolution
the portion of the Moon or a planet reflecting light as seen from Earth
the lighter part of a shadow where light is partially blocked
penumbra
What causes the Sun's apparent motion across the sky?
Earth's Rotation
The Earth's movement around the Sun and the Moon's movement around the Earth causes the appearance of the Moon to change
phases
A spinning motion
rotation
when more of the Moon's near side is lit each night
waxing phase
when the Moon's shadow appears on Earth's surface
solar eclipse
Area of the Earth that is warmer due to light from the sun being direct
equator
partial solar eclipse
the line on which an object rotates
rotation axis
less of the Moon's near side is lit each night
waning phase
when the Moon moves into Earth's shadow
lunar eclipse
Area of the Earth that is colder due to the light from the Sun spreading out to reach it
Poles
The event that occurs when the Moon passes under Earth's umbra
total lunar eclipse
a day when Earth's rotation axis is the most toward or away from the sun
solstice
a day when Earth's rotation axis is leaning along Earth's orbit, neither toward nor away from the Sun
equinox
the daily rise and fall of a sea level
tide
Cause of Earth's seasons as Earth revolves around the Sun
Earth's Tilt
Area of high water on Earth caused by the gravitational pull of the Moon
tidal bulge