i need a idea of how a model of the element Aluminum should be made as a project for school.
Well, look at all of the goods made of LDPE and ask what other materials could be substituted cost effectively, or whether some of the goods would not be possible [physically and/or economically].
Whatever you want, but I had to do a project like this a few years back and I glued a bunch of styrofoam balls together to form the nucleus and put more balls on long toothpicks around the thingIt was pretty good.