1)   Element Gorilla Plus 1.5 * Drills up to 118 Chemical Elements and Symbols * Choose atoms individually or by groups * 3 different question types * American, English or Custom spelling * Capable of changing the symbols for newly named elements 2)   Atoms, Symbols and Equations 4.0 Unique interactive multimedia Chemistry teaching software that tests students as they learn. Topics include: elements, atoms and molecules, word equations, chemical symbols, Periodic Table, chemical formulas, balancing chemical equations.