Unit 3 Chapter 2 VOCAB

Front

a flat grassland

Back

prairie

Front

the top layer of grassy soil, sometimes used to build houses

Back

sod

Front

to leave one place to settle permanently in another

Back

emigrate

Front

an animal, such as a horse or a mule, that is used to carrying heavy loads

Back

pack animal

Front

a boat with a long ridge on the bottom, used to navigate rivers

Back

keelboat

Front

a motor that uses steam to work

Back

steam engine

Front

a boat powered by a steam engine

Back

steamboat

Front

a railroad engine

Back

locomotive

Front

crossing the entire continent

Back

transcontinental

Front

a rock or mineral from which metal can be obtained

Back

ore