I use these slides to introduce lesson vocabulary words for Macmillan/McGraw-Hill's 4th grade text, Our Golden State. The slides include pictures and sound effects. The pictures assist in making the content comprehensible for English learners and/or other struggling learners. This file covers the terms found in Ch. 2: mountain pass, source, tributary, volcano, erupt, industry, tourist, valley, fertile, delta, erosion, agriculture, migrant worker, urban, suburban, bay, harbor, earthquake, plates, fault, adapt, technology, irrigation.