UnseenMoment on Instagram: "Sand often contains small particles of iron or magnetic minerals like magnetite. When a strong magnet is moved through dry sand, these tiny metal particles are attracted to it. The magnet helps separate the magnetic materials from the non-magnetic sand. This simple process shows how magnetic forces can be used to collect or identify iron-rich materials naturally present in sand. DM for credit/removal #foryoupage #technology #makesand #magnet"