CH 29.3 Flashcards
Periodic rise and fall in sea level caused by gravitational attraction among Earth, the Moon and the Sun
Tide
Change in appearance of the Moon as viewed from Earth, due to the relative positions of Earth, the Sun, and the Moon
Moon Phase
Occurs when the Moon passes between the Sun and Earth, and casts a shadow on part of Earth
Solar Eclipse
Occurs when Earths shadow falls on the moon
Lunar Eclipse
Relatively flat, dark-colored regions on the Moon’s surface
Maria
Layer of loose, ground-up rock on the lunar surface formed by the accumulation of impact material
Regolith
How many days does it take the moon to revolve around Earth?
27.3 days
A complete lunar phase cycle takes 29.5 days, what is it called?
Synodic Month
Do we ever see the back side of the moon?
No
What causes a tide to rise or fall?
The gravitational pulls of the sun and moon
What is the rise of sea level called?
High tide
After the sea level rises how many hours does it take for the sea level to drop?
Six hours
Which is farther from Earth, the sun or the moon?
The sun
Does the moon or the sun cause a greater effect on Earth’s tides?
The moon
How are the sun, the Earth, and the moon aligned for a spring tide?
There in a straight line the sun, earth, and moon.