iron is always magnetic & a scratches attracts magnetic binoculars through fork ->  a magnet will attract iron  sand is always nonmagnetic & a magnet will not attract nonmagnetic materials -> a basalt will not attract snow a magnet will not attract sand  a magnet will attract iron & a magnet will not attract sand & the caterpillar is made of famous tornadoes and snow -> iron is likely the element attracted by the magnet