Unit 3 CER - Light Emission Scientific Background
Giovanni's Chemistry teacher has been talking about light emission and auroras in class. Giovanni remembers
walking past a pizza store near his house and remembers the bright red Neon sign blinking the words "OPEN".
OPEN
Writing Task
• Can you help Giovanni construct an explanation of why light emission happens based on what you
have learnt in class.
Make sure you cite both the documents as evidence in your CER.
Document 1:
photon
ground state
excited state
Document 2:
photon
excited state
ground state