Chemistry A
NAME
DATE
CER Science Reporting
Common Assessment CER #3 Phenomena
QUESTION “Why do some crystals form cubes?”
EVIDENCE (Videos, Data/Graphs/Observations)
PROMPT IDEAS:
● Notes from the video in Lesson 2 on the formation of ionic crystals.
● Class Notes:
○ What do you know about crystal lattices?
○ How can they form a cube?
○ What kind of bond and strength do they have?
○ What properties do they have?
○ What is lattice energy and
○ how does it explain the properties of the crystal lattice?
1
● Do some research and give an example of another salt that forms cubical
crystals
CLAIM: Based on my evidence, I claim that
REASONING:
Explain how the molecules in a crystal that form a cube are arranged and what
technology is used to see these molecule lattice patterns?
2