In today's era of learning rather than teachers who become the source (teaching learning center), but (student learning center) so that the teacher is not the main source of learning. In addition teachers are also required to activate the students. One way to enable students to become active is to involve students in one of which is pembeajaran through dilaboratorium activities. With activities in the form of laboratory practicum students will not only get the theory but also practice the theory they have acquired. But lately dilaboratorium activity decreased and some have not conducted at all. Classical reasons not terselenggaraya activity is due to the expensive equipment and chemicals, but lack of data encari overcome by chemical substitution with sinteti existing chemicals around us.
Lots of chemicals that is around us can be used for practical activities such as kitchen vinegar, water, batteries (sulfuric acid), nails (iron), lime (alkaline) and many more. So from now on no more reason there is no material and no lab equipment.
See also:
1. Practicum redox reactions with the materials around us
2. Practice factors that influence the rate of reaction
3. Practicum acid base indicator from natural materials
4. Practicum indotermik and exothermic reactions
