This unit is based on New York Sate 7th and 8th grade Science Standards. This unit is filled with required content, but it is also modified to fit the needs of different style learners. Attached to this zip fill you will find: a SMARTnotebook presentation, a teacher's guide complete with NYS Common Core Standards, student notes and its answer key, a unit study guide, a unit test with its answer key, and a list of the websites that are embedded in the SMARTnotebook presentation.