Annotation 1 ~ A Continental Puzzle https://docs.google.com/document/d/1g9jaGqjS9sHnLKPzI7ocPYyrGUkR0SFu2gzvWkWBlgA/edit?usp=sharing
Annotation 4 ~ Atomic Zoom In
https://docs.google.com/document/d/1or2nQSrKYzJOCK-T5G65dRs8nHmeJUHWILfyVn2RpsY/edit?usp=sharing
CER 1 ~ Plate Motion
https://docs.google.com/document/d/1D72KzpM-wbCIHCc8566fSTc26xMs6AXU6VMyd-a8XV4/edit?usp=sharing
CER 2 ~ Chemical Reactions
https://docs.google.com/document/d/1WahGjm4GzQ9fjHKbkEq0m2QydR-tKPjqvu0Mj16CaZc/edit?usp=sharing