This is a full unit that includes inquiry activities, activities to revise models, model building instructions, rubrics and assessments. The unit is compliant with NGSS and Literacy standards for CCSS. The unit is scaffold for the students to make a five paragraph essay that is used as a summative assessment. The three investigation questions, once answered or justified, will be used as body paragraphs in the five paragraph essay. The lectures for the units are sold separately.