Earth Days, Years, and Seasons
spinning body, such as a planet, that rotates on its axis
rotation
how many hours does it take for one full rotation
24
sun, moon, and the earth are at a 90'degree angle causing these tides
neap tides
A New Moon appearance is what ?
Pitch Black (No appearance)
one quarter of the moon cycle is called
first quarter
one full rotation
Day
How many days are in a year?
365 1/4
sun, moon, and the earth form a straight line causing these tides
spring tides
a body that orbits another body is called
satellite
second week of the moon cycle is called
gibbous phase
motion of a body that travels around another body in space
revolution
How many months in a year?
12
difference between the level of ocean water at high and low tides
tidal range
a force that pulls other objects with mass towards themselves
gravity
fourth week and final step in the cycle is called
new moon
what is it called when their is a full revolution around the sun
Year
How many moon phases are there ?
4
daily changes in the level of ocean water
tides
change in the moons appearance
lunar phases
darkest part of a shadow
umbra
sunlight shines equally on the Northern and Southern Hemispheres'
equinox
How many types of tides are there involving the sun. moon, and the earth placement
2
What are the two placements or measures for both Spring and Neap tides
Straight line, 90' degree
A Full Moon needs what to be apparent ?
Sun's direct sunlight
cone of light
penumbra