This printable word search puzzle on the topic of US History (General) contains 24 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
INVERTEBRATES
VOLCANOLOGIST
WESTERNREGION
CENTRALREGION
EASTERNREGION
PRECIPITATION
PRECAMBRIAN
FOSSILFUELS
NATURALGAS
IRRIGATION
HEADWATERS
PALEOZOIC
MEGAFAUNA
SEDIMENT
MESOZOIC
CENOZOIC
FOSSILS
GEOLOGY
EROSION
ADAPTED
CHINOOK
PLAINS
COAL
OIL