In the "Lab" you become a fossil preparator, and discover how scientists separate fossils from millions of years of sediment and rock.
(you; become; a fossil preparator; L:In the "Lab) (you; discover; how scientists separate fossils from millions of years of sediment and rock)
you you
become discover
a fossil preparator L:In the "Lab
how scientists separate fossils from millions of years of sediment and rock