Day & Night
Causes day and night on earth
What is the earth's rotation on its imaginary axis
The motion of one object around another object
What is a revolution?
To obscure the light from or to another object
What is to eclipse?
A tide
What is the daily rise and fall of sea level?
A complete lunar cycle
What is 29.5 days?
A spinning motion
What is rotation?
365.25 days
What is the amount of time it takes earth to make one revolution around the sun?
When the moon's shadow appears on earth's surface
When is a solar eclipse occurring?
The relative positions of the moon and sun and their gravitational pull on the earth
What causes earth's oceans to rise and fall twice each day (2 answers)?
The moon's revolution around earth and reflected sunlight
What causes the phases of the moon?
Motion from west to east
What is the direction of earth's rotation?
This object produces earth's revolution
What is the sun's gravitational pull?
A full moon
What is the phase of the moon during which a lunar eclipse may occur?
6 hours, 12.5 minutes
The amount of time between each low tide and high tide
The new moon phase
Which moon phase is completely dark?
This imaginary line is tilted 23.5 degrees from vertical
What is earth's tilt?
The longest day of the year
What is the summer solstice (June 21)
During a new moon
What is the phase of the moon during which a solar eclipse may occur?
Spring Tides
What causes higher high tides and lower low tides?
The moon phase that occurs approximately 10 days after a first quarter moon
What is a waxing gibbous?
The line on which an object rotates
What is the rotational axis?
The date of the longest night of the year
What is December 21 (winter solstice)?
Sun, earth, moon
What is the correct alignment of the moon, earth, and sun (from left to right), during a lunar eclipse?
Spring tides
Which tides occur during the full moon and the new moon?
What is sun, earth, moon
The half of earth facing away from the sun
When is it nighttime on earth?
Spring and fall equinox
When do the Northern and Southern Hemispheres receive equal amounts of direct sunlight (2 seasons)?
The lunar eclipse
Which is the more common eclipse?
12 hours, 25 minutes
What is the amount of time between each high tide?
The phase of the moon occurring 2 weeks prior to the waning gibbous
What is a waxing crescent?