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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Molecules...
Looking at molecules is definitely important, and I'm glad that we did it - not because I like them, but because my anatomy class last year gave me a romanticized view of science. Instead of learning all the chemistry behind the human body, we got to learn about the organs. It made me want to pursue a career in medicine or science, and I think that learning about molecules was kind of a reality check.