In a paper on the nature of heat published in 1837 in the Journal of Physics, Karl Friedrich Mohr made one of the first general statements on the doctrine of energy savings: “In addition to the 54 known chemical elements, there is only one pathogen in the physical world, and this is called force. Depending on the body of reflection, it can appear as a movement, a chemical affinity, cohesion, electricity, light and magnetism; and in one of these forms, it can be transformed into one of the others. The fact that kinetic energy is scald, unlike the linear pulse, which is a vector, and therefore easier to work with, did not escape the attention of Gottfried Wilhelm Leibniz. It was Leibniz in the years 1676-1689, who tried for the first time a mathematical formulation of the type of energy that is related to movement (kinetic energy). With the help of Huygens` collision work, Leibniz noticed that in many mechanical systems (of several masses, mi each with the speed vi) thermal energy is also produced when surfaces rub against each other (friction heat). That`s why, in this chapter of the book, we present the lessons learned from the diagnosis we made with 90 biology students using the pencil and paper test on energy saving, reflecting the test points of biological and daily life situations that we have specially developed for this study. Energy savings are a common feature of many physical theories. From a mathematical point of view, it is understood as the consequence of Noether`s theorem, developed by Emmy Noether in 1915 and first published in 1918. The sentence indicates that any continuous symmetry of a physical theory has an associated preserved quantity; If the symmetry of the theory is temporal invariance, then the amount conserved is called “energy.” The Energy Savings Act is a consequence of time symmetry; The empirical fact that the laws of physics do not change over time itself imply energy savings. Philosophically, this can be called “nothing depends on the time itself.” In other words, if the physical system is invariant under the continuous symmetry of temporal translation, then its energy (the amount of canonical conjugate is currently preserved). Conversely, systems that are not invariant in time lags (for example. B time-based potential systems) have no energy savings – unless we consider them an energy exchange with another external system, so that the theory of the advanced system becomes temporal again.