Introduce your students to the mysteries of the ocean with this "Deep Sea Science: The Mariana Trench" Teacher's Guide and Lesson Plan, Designed specifically for 2nd, 3rd, and 4th-grade classrooms, this NO PREP, print-and-go resource perfectly blends Earth Science and Geography. This highly engaging 8-page packet from Alex Educational Resources includes: Informational Reading: A fascinating reading passage introducing the Trench, its location in the Pacific Ocean, and its extreme environment.Rea