The moon
How far did the earth axis shift to cause a change in the environment in Africa?
1 Degree
The radius of the moon is about ______ Earth's radius; (give your answer as simple fractions, not decimals)
1/4
When planets collide, how long does the collision take?
20- 30 min
At what distance did the moon first form?
22,530
For every impact on the MOOn, how many strike the Earth?
25
How far does the moon leave our system each year?
3.8 CM
How long was a typical day at that time?
4 hours
How much stronger would the lunar pull be?
4000 * stronger gravity
Craters on the moon are primarily due to ______, leavings debris to cover the surface known as _____
Collisions, Regolith
What trace of an organism did minik Rosing discover in the oldest rock layer on earth?
Complex Plankton
Because the moons average density is so much lower than earths average density we can infer that the moon must contain less __________
Density less Iron Not enough Heavy stuff on the moon
Earth mark 1 refers to what?
Earth with no moon
Although the moon's daytime temperatures are always very hot, it may still be possible for it to have sheets of water ice at its ______
Equators, the poles
A tidal wave is caused by movements of earths crust
False
Some volcanic activity continues today on the surface of the moon
False
The moon has an extensive iron core
False
The moon has nighttime low temperatures of 400K, well below the freezing point of water.
False
the largest Maria on the Moon is called the Sea of vapors
False
The moon rotated on its axis about once per week
False , 27.3 days
How do the lunar phases interact with biology on our planet?
Humans and pololo worms worms
The most accurate method for determining the distance to the moon is by ________
Laser Ranging
How is the distance to the moon most accurately measured then use math to prove its distance
Laser Ranging helps us. Laser travels at the speed of light. C= 300,000 * 1.28= 384,000 Km sec. take 2.5/ 2 = 1.28 seconds to go there
The Lunar maria's Dark, dense rock originally was part of the lunar ________
Mantle
The ______ on the moon are dark, flat, roughly circular regions hundreds of kilometers in diameter
Maria
What sized object struck our planet?
Mars sized object 2000 Km.... 1.2 mars mass
The most likely scenario for the information of the moon is a collision between Earth and a __________
Mars sized planet. Another planet or Theia
Why would lunar structures be made out of lunar material instead of metals?
Regulith lunar dust ——> sandbags
What feature on other planets cane out planetary collisions?
Rings ( Miranda)
What are the three theories of lunar FORMANTION?
Sister- moon formed closer to us. Capture- moon floating/ gravity grabbed Daughter- moon came for us earth spinning fast and equator broke off
What might be the dominant species on our planet without the moon forming event?
Squid, octopus
The crater produced by the impact of a meteoroid on the moon has a typical diameter about ______ times the diameter of the meteoroid.
TEN
The lunar crust is significantly _______ than Earths Crust
THICKER
The biggest crater on the moon is the Orientale Basin
TRUE
Without the moon what would happen to our tilt?
The Earth would spin a little faster without the moon
What evidence do we have for ice on the moon?
The ROCKS PROVE IT
What name is given to the rogue planet between Earth and mars?
Theia
What rocks on our planet gives us clues to this information?
Tidal Rythmite
Large craters are formed frequently today on the surface of the Moon.
True
Laser ranging can determine the distance to the moon to an accuracy of a few centimeters
True
Neither Mercury nor the moon has any significant atomsphere
True
The moon is 4.4 Million Years Old
True
what is required first over all to have people living on the moon
Water
