As the student works through his science spine, he’ll encounter descriptions: physical descriptions of objects in nature (the parts of a cell, the layers of the earth, the structure of an atom) and narrative descriptions of natural processes (the fission of an atom, the journey of a tree from seed to sapling, the orbit of a planet). Whenever he encounters one of these descriptions, he should summarize it briefly in his own words, write it down, and place it in the Scientific Description section of his notebook.
