Earth Science, Earth's Atmosphere, Atmosphere, Nitrogen Cycle, Nitrogen, Oxygen, Carbon Dioxide, Graphic Organizer, Rubric, Assessment Criteria, Note-Taking, Practice, Formative Assessment, DOK, Critical Thinking, Higher Level Thinking, Reading, Ammonification, Nitrification, Denitrification, Fixation, Assimilation, Heterosphere, Homosphere, Stratosphere, Troposphere, Exosphere, Ionosphere, Mesosphere, Thermosphere, Ozone Layer, Magnetosphere, Problem-Solving, Authentic Questions, Earth's Shield