# How many grains of sand in the Sahara?

# How many grains of sand are there in the world?

According to the University of Hawaii's answer: There are seven quintillion five quadrillion grains of sand on allthe beaches of the world. That's a 75 with 17 zeros followin…g! "75 with 17 zeros following" (7.5x10^18) is seven quintillion, fivehundred quadrillion. But what's an extra 495 quadrillion with somany variables in the equation? Consider more possibilities... With oceans rising and the deserts expanding, the question ofgrains of sand on the beach is kind of arbitrary. I think we woulddo better to ponder a more global picture: an estimate of all"sand" particles on the entire earth's surface, (including thatwhich is covered by salty, briny, or fresh seas and rivers). Of course "sand" varies by composition, but is defined by size ofparticle. Tough questions then arise regarding the unexplored oceanfloor, which includes a lot of silt (the same composition, butdifferent size per particle than sand). Perhaps we could correctfor that based on volume of silt, (or gravel, for that matter), pergrain of sand under the sea. With massive erosion occurring due to water runoff and floodingcaused by widespread deforestation, the intractability of theproblem becomes as troublesome as estimating the number of stars inthe expanding universe. Isn't that the analogy that captures ourimagination, anyway - stars versus grains of sand? But another answer is: The exact number is not known. The exact number can't be known to mere mortals. The number ofgrains of sand is constantly changing as rock is worn away dailyinto more sand and tons of sand are melted daily to make glass andother products. Then you come to the dilemma of deciding the pointat which sand ground fine enough, when do you start to call itdust.

# How many grains of sand are in the world?

well if you added all the sand up in the world and counted them it would be at least 10000,000000,0000,0000,000,000 and more

# How many grains of sand are in an hourglass?

That will strongly depend on both the cross-sectional area of the regulating orifice, and the duration of the time period that the device is designed to delineate.

# How many grains of sand are there?

too many to count!

# How many grains of sand are there in the Sahara desert?

In scientific terms, a whole bunch of em.

# How many grains of sand on a beach?

There are over a billion grains of sand on a beach There are more stars than grains of sand.

# How many grains of sand are there in Florida?

This is an un-answerable question due to the fact that the number of grains of sand is constantly changing and we can not keep up with it. But I can tell you that Florida has …more grains of sand than Rhode Island and less than the Sahara Desert. Hope I helped. Still counting.

# How many grains of sand are on the beach?

Impossible to know!

Answered

In Geology

# How many atoms are there in a grain of sand?

If the sand is totally silicon dioxide and is assumed to be auniform volume of one cubic millimeter then the number would beapproximately 2*10^19 molecules, or 20,000,000,000,…000,000,000

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In Geology

# How many sand grains exist?

There are a lot of sand grains in the world.

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In Geology

# How many grains of sand in a pund of sand?

7,008 grains= 1 pound of sand. Answer: The term "sand" can be assigned to wide range of particles. Studies indicate that mid-sized sands weigh 0.67 - 23 mg per grain. This… means there are from 1 500 000 to 43 000 grains per kg. A kg is 2.2 lb., so there are potentially 700 000 to 22 000 grains per pound.

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In Beaches

# How many grains of sand in a sand pail?

5,000,000,000

Answered

In Geology

# How many quarks in a grain of sand?

There are 3 quarks in each neutron. There are 12 neutrons in each proton. There is 1 proton in each atom. There is 36 quarks in each atom. There are about 27 million atoms in …each grain of sand. 36 x 27,000,000 = 972,000,000. There are 972 million quarks in a grain of sand.