The Dust Bowl

Plows and Bubbles

Clip: Season 1 | Video has closed captioning.

Learn about the two types of plows farmers used.

Aired: 11/18/12

Rating: NR

From:

Problems Playing Video? | Closed Captioning

Funding is provided by Bank of America, Corporation for Public Broadcasting, The Arthur Vining Davis Foundations, National Endowment for the Humanities, The Rockefeller Foundation, Wallace Genetic Foundation and members of …