Build Models of Molecules

Hydrogen, H2, is a highly flammable gas. Oxygen, O2, is a reactive gas that promotes combustion. Together they form water, H2O, a liquid used to extinguish fire. H2, O2, and H2O are formulas for molecules that are formed when two or more atoms bond together by sharing electrons. Build models of molecules to discover why atoms bond together and explore a great variety of compounds formed by just four different elements.