juniorLAB is a web delivered simulation of acid base chemistry laboratory experiments suitable for middle school students.

It has been developed for the needs of the Secondary Education in Greece as a small part of a multimedia educational system developed for the Pedagogical Institute.

The students can freely experiment with solutions of acids, bases and salts. The experiments could be the use of indicators, pH paper and pH meter for the measurement of the pH of a solution, the effect of dilution on the pH and the acid - base neutralization.

Several modules of juniorLAB have been developed in order to fit the instructional needs of teachers. A few of them are presented here.