Here you will find the virtual "lecture" notes on the weekly discussion topics as well as your assigned discussion questions for the week.

All discussions will take place on the Blackboard discussion board: http://bb.elmhurst.edu

• Discussion 1 (August 30 - September 5): Introductions and what is light?

• Discussion 2 (September 6 - September 13): Why is the sky blue? What causes sunsets?
  Note extended deadline to compensate for Monday holiday.

• Discussion 3 (September 13 - September 20): How do rainbows form? What makes fireworks colorful?

• Discussion 4 (September 20 - September 26): How do neon lights work?

• Discussion 5 (September 27 - October 10): What are the Northern Lights? What is a Chemical Reaction? How are molecules shaped?
  This discussion will run over two weeks. There is no early posting deadline.

• Discussion 6 (October 11 - October 24): What is the solid state? What are pigments? How are molecules shaped?
  This discussion will run over two weeks. Early posting deadline is Sunday 10/17. Discussion 7 will start 10/18

• Discussion 7 (October 18 - October 24): What are paints made of? How are frescos made?
  This discussion runs parallel with discussion 6. Early posting deadline is Wednesday 10/20.

• Discussion 8 (October 25 - October 31): Why are rubies red and sapphires blue?
  

• Discussion 9 (November 1 - November 14): How do semiconductors work? What makes metals shiny? How do LEDs work?
  This discussion will run over two weeks. There is no early posting deadline.
  

• Discussion 10 (November 15 - November 29): What makes blue jeans blue? This discussion will run over two weeks. There is no early posting deadline. NOTE: This link (discussion 10 only) is down - it will be fixed Monday evening
  

• Discussion 11 (November 29-December 5): Why are leaves green? There is no early posting deadline.
  
• Discussion 12 (December 6-December 18): What makes Fireflies glow? How do fluorescent dyes work? What make objects glow in the dark? There is no early posting deadline.
  

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