CPO Science Link Gravity Drop Basic Classroom Package includes equipment for six groups of 3 - 5 students. The Gravity Drop module allows students to make consistent marble drops and precise measurements, with reduced human error, controllable variables, and easy dropper/catcher alignment. Exploring the concepts of free fall, acceleration, and Newton's Laws will be fun for your students!Three-levels of hands-on investigations, classroom-tested equipment, tablet-enabled learning experiences and online multimedia content make it a powerful tool to enhance student understanding. It contains five tablet-enabled investigations that are powered by Exploros. Through curiosityplace.com, you can access digital teacher's guide, answer keys, equipment setup videos, whiteboard resources, student assessment sheets, student investigation sheets, student readings, skill and practice worksheets, science content videos and content animations. It meets MS-PS2-4, HS-PS2-3, HS-PS2-4 NGSS performance expectations.