*black sand particles which are attracted to the magnet are magnetite, an iron oxide, which has magnetic properties.
(*black sand particles; are attracted; to the magnet) (*black sand particles which are attracted to the magnet; are magnetite; ) (an iron oxide; has; magnetic properties)
*black sand particles *black sand particles which are attracted to the magnet an iron oxide
are attracted are magnetite has
to the magnet
magnetic properties