Phase diagram can be constructed that show the effect of more than two variables on the phase of a substance. Phase diagrams can use other variables in addition to or in place of temperature, pressure and composition, for example the strength of an applied electrical or magnetic field, and they can also involve substances that take on more than just three states of matter. One type of phase diagram plots temperature against the relative concentrations of two substances in a mixture called a "binary phase diagram", as shown at right. Such a mixture can be either a solid solution, eutectic or peritectic,
This Is Only a Test Only a Test" isn't without its moments of awkwardness. Whether it's piano-heavy power ballads ('College'), spoken-word verses written as diary entries ('Diary of a Teen Tragedy') or five-minute electronic tracks about not being able to participate in P.E. class ('Excuse Me, Coach'), Smoking Popes occasionally veer off their tried and true template of catchy, soulful pop-punk, and do so with mixed results." However, he noted that "there are still plenty of hooks to be found on the album, especially it its loaded first half", comparing the band to Weezer and calling the album "a mostly successful experiment." Tori of Punknews.org