Additional Material

	Virtual Lab's SEM Basics (scope hardware)   Virtual Lab's SEM Basics (Imaging)   See how NASA uses the SEM in daily research) (demonstrated by Stan Young)   Preparing a sample for the SEM (demonstrated by Josie)   Samples   Additional Material

	Virtual Lab is developed at NASA Kennedy Space Center by principal investigator Berta Alfonso. Implementation and imagery were provided by The Beckman Institute at the University of Illinois at Urbana-Champaign, co-producers Glenn Fried and Benjamin Grosser.