3.1 Creation of Complex Elements (K-A)

• Threshold 3: New Chemical Elements (K-A)
• Threshold Card: Threshold 3 New Chemical Elements (K-A)
• What Did Stars Give Us? (K-A)
• Navigating the Periodic Table (K-A)
• Crash Course Big History: Stars & Galaxies (K-A)
• A Little Big History of Silver (K-A)
• Infographic: Chemical Abundances: The Universe (K-A)