(I guarantee you this is not what it sounds like.)

Last week, we began a new unit, called “Homeostasis.” I am wholly unclear what “homeostasis” means, but it sounds important. The previous unit was all about the various infections you could catch and how your body tried and/or failed to fight them off; this unit is about the heart, lungs, and kidneys.

Everything about the heart, lungs, and kidneys. Continue reading →