This vocabulary describes in detail 24 content words that are needed for all learners to access chemistry content. The vocabulary word includes a picture and a teacher generated definition in both English and Spanish. Vocabulary words included are: alkali metals, alkaline earth metals, atoms, atomic mass (atomic weight), atomic number, Bohr model, electron, electron cloud, element, group (family), halogen, isotope, Lewis dot structure, mass number, metal, metalloid, neutron, noble gas, nonmetal,