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MODULE 4
ELECTRONS IN ATOMS
ENCOUNTER THE PHENOMENON
How do we know what
stars are made of?
GO ONLINE
to watch a video about
how scientists analyze the light from
stars.
Ask Questions
Do you have other questions about the phenomenon? If so, add them to the driving
question board.
CER
Claim, Evidence, Reasoning
Make Your Claim
Use your
CER chart to make a claim
about how we know what
stars are made of.
Collect Evidence
Use the
lessons in this module to
collect evidence to support
your claim. Record your
evidence as you move
through the module.
Explain Your Reasoning
You
will revisit your claim and
explain your reasoning at the
end of the module.
GO ONLINE
to access your CER chart and explore resources that can
help you collect evidence.
LESSON 2: Explore & Explain:
Bohr’s Atomic Model
LESSON 1: Explore & Explain:
Failures of the Wave Model
Additional Resources
(t)Video Supplied by BBC Worldwide Learning; (bl)SPL/Science Source; (br)NASA, ESA, and M. Livio and the Hubble 20th Anniversary Team (STScI)
Module 4 • Encounter the Phenomenon
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