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Displaying 1—10 of 1000 matches for query "24._Is_the_Moon_made_up_of_comet_or_rock" retrieved in 0.042 sec with these stats:
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- "rock" found 1740 times in 735 documents
The Moon is thought to be mostly made up of rocks and debris blown into orbit when a very large planetoid—at least as large as Mars— smacked into the Earth. Over time this material collected and cooled and created the Moon. Since then it has been hit many, many times, by comets and asteroids, and most of that material will remain on the Moon. Sometimes the impact is big enough to blow ...
... —is that the abundance of elements in the Moon's crust are very similar to those found in the Earth's crust. These chemicals are all mixed together in the form of different minerals and rocks that make up the Moon. That's when we start getting in to things like pyroxenes and plagioclase feldspars and olivines. Heiken, G.H. et al, Lunar Sourcebook: a user's guide to the moon ...
... not all. Our Moon's material is similar to that of the Earth's.
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Answer provided by Ed Frederick, Ph.D.
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space ...
... that goes straight up and down (vertical). They're not quite at right angles to each other, but very close. The differences in the lengths of these three axes give the Moon a sort of egg ... have adequate maps yet of the Moon to have an exact number for the diameters noted above, but on average the diameter of the Moon is about ~ 2,160 miles. http://www.nasa.gov/worldbook/moon_worldbook.html (See ...
... the Moon are known as maria (MAHR ee uh). The word maria is Latin for seas; its singular is mare (MAHR ee). The term comes from the smoothness of the dark areas and their resemblance to bodies of water. The ...
The Moon is about as old as the rest of the solar system— 4,560,000,000 years, based on radioactive decay dating of lunar rocks. http://www.pbs.org/wgbh/nova/tothemoon/origins2.html (See CDROM ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE MOON
... what the core of the Moon consists of. However, they suspect that is not a large iron one like Earth's because of the Moon's low density and lack of a magnetic field. http://www.nasa.gov/worldbook/moon_worldbook ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE MOON
The radius of the Moon is measured from its center of mass to its surface. For the Moon this is, on average, about 1,080 miles. The Earth's radius at the equator is 3,963 miles making the Moon's radius 27.25 percent that of the Earth. http://www.nasa.gov/worldbook/moon_worldbook ...
... . This is because its orbit is not a perfect circle, but rather an ellipse, so sometimes it's closer (at perigee) and sometimes farther away (apogee). http://www.nasa.gov/worldbook/moon_worldbook ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - THE MOON
... left special instruments on the Moon, and a special laser at the McDonald Observatory in western Texas bounces a laser off these instruments. Careful measurement of the results has shown us that the Moon is moving slowly away from us, at about 1.5 inches per year. http://www.nasa.gov/worldbook/moon_worldbook.html (See CDROM ...
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