Our participants do lots of fun experiments to give them the basic knowledge to progress in the STEM science field. Acids and Bases are some of the more fundamental concepts in science and we try to give our kids as much exposure to as many experiments as we can that tackle these concepts.
Most substances you see will generally either have an acid or base but what is an acid? What is a base? There are four prevailing definitions used to evaluate whether materials are acids or bases. The definition do not contradict each other but some are more inclusive than others.
The Svante Arrhenius (Sweden) definition (1884)
The Thomas Lowry (England) and J.N. Brønsted (Denmark) definitions (independently reached in 1923)
Was Arrhenius erroneous? No. The Arrhenius definition serves well for a limited use. We are going to use the Arrhenius definitions most of the time.
The Lowry- Brønsted definition
The G.N. Lewis (1923)