![U.s. Geological Survey: Lead Soft and Easy to Cast [Pdf] Handout](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "U.s. Geological Survey: Lead Soft and Easy to Cast [Pdf] Handout")
US Geological Survey
U.s. Geological Survey: Lead Soft and Easy to Cast [Pdf]
This detailed resource teaches about lead and the important role it plays in the national economy, national security, and lives of Americans every day. Discover how we use lead, where it comes from, and where future lead supplies might...