Jack tries to place magnets on the door of his refrigerator. he observes that the magnets don't stick. he guesses that the door of the refrigerator id made of non magnetic substance. what stage of scientific investigation does his guess represent?

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.