The theory as to the moon's origin
Giant Impact Theory
Latin for seas
Maria
Fragments of rocks fused together
Breccia
The core of the moon is partly __________ and partly liquid
solid
What shape is the orbit of the moon?
Elliptical
When the moon is furthest from Earth
Apogee
When the moon is closest to Earth
Perigee
How many minutes later do tides occur?
fifty
What phase occurs when the moon appears to increase in size?
Waxing
What phase occurs when the moon appears to decrease in size?
Waning
The difference in levels of ocean water at high and low tides
Tidal Range
What causes the tides?
Moon's gravitational pull
How many high and low tides are there in a day?
two
When the sun and moon's gravitational pull is compounding
spring tides
Spring tides occur during a full and ________ moon
new
The inner part of the shadow
umbra
Outer part of the shadow
Penumbra
When the moon falls directly between the sun and Earth
solar eclipse
When Earth falls between the sun and moon
Lunar eclipse
The name of the object believed to have collided with Earth
Theia
The middle structual layer of Earth
Mesosphere
Thumbnail moon
Crescent
When the moon is more than half full
Gibbous
Gravity on the moon is ___________ that on Earth
one-sixth
Long, deep channels
Rilles