Magnetic Sand Timer Wall Mount The term "serpentine" is commonly

The term "serpentine" is commonly used by the general public to refer to the rock type that geologists call "serpentinite

For 13 million years it dominated the oceans and was considered by today's standards to be a living

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vibrant emerald that are truly a wonder to behold

Magnetic Sand Timer Wall Mount The term "serpentine" is commonlyAges 14+ Mesmerizing and fun to watch, the Magnetic Sand Timer uses the power of magnetism to sculpt iron filings into a hemisphere of craggy spikes. How does it work? The magnet in the base has a magnetic field that attracts the iron filings. Iron is a ferrous element, meaning it has atoms with unpaired electrons spinning in one direction. These electrons encourage nearby iron atoms to align and spin in the same direction. In this way, the more atoms