Unit Title	Author	Year
Seminar: What is the Earth Made of?
Extracting Earth’s Elements	Eual A. Phillips	2017
Keywords: Chemistry, compounds, coordination, covalent, crystals, earth, endangered elements, Environmental Science, green chemistry, ionic, Math, minerals, molecular geometry, physics
The Earth’s Layers	Monique McCoy	2017
Keywords: algebra, climate change, Earth Science, Math, Physical Science, Science