Earth's makes one full revolution around the sun every year
What is a revolution?
100
A body the orbits a larger body
What is a satellite?
100
As the moon revolves around Earth, the portion of the moon that reflects sunlights back to Earth changes, causing the moon's apperance to change. These changes are called lunar phases
What are lunar phases?
100
An event during which one object in space casts a shadow onto another
What is an eclipse?
200
Cirrcular motion of an object around its axis and it spins counter clockwise
What is a rotation
200
Causes the seasons
What does Earth's tilt do?
200
Exert force that pulls objects with mass toward themselves
What is gravity?
200
A new moon
What does the cycle start with?
200
The darkest part of a shadow
What is an umbra?
300
when the light is hitting the Earth making an equal amount of daylight and nightime.
What is an equinox?
300
23.5 degrees
What is the angle that Earth tilts at?
300
Revolution
The moon completes one rotation for every __________ it makes around Earth.
300
when the near side is more than half lit but not fully lit
What is a gibbous?
300
Spreading cone of lighter shadow
What is a Penumbra?
400
2 times a year
How often do equinoxs' happen?
400
The North Star
What does Earths axis point toward?
400
when it reflects the sunlight that reaches the moon
When it the moon only visible from Earth?
400
Third Quarter
What is the last part of the moon's phases?
400
When the moon is directly between the sun and Earth, the shadow of the moon falls on a part of Earth and causes a solar eclipse
How do solar eclipses occur?
500
when the sun reaches its highest or lowest point in the sky it is marked by the shortest and longest days of the year.
What is a Solstice?
500
The winter solstice
What is the shortest day of the year?
500
Roughly 383,000 km about a hundred times the distance from New York to Los Angeles
What is the distance between Earth and the moon?
500
Appears to grow
What does the waxing moon appear to do each day?
500
Lunar
When the moon is in Earth's umbra what eclipse is occuring?