This is a great lab that uses everyday materials to explore the transformation of energy between potential energy and kinetic energy (and vice versa).
It includes teacher information, background information, all lab directions, data tables, data analysis (graph) and follow up questions.
Students are put into teams of 4 to collect data. Each student has a specific task as part of their group. Students collect data of a ball dropped from 4 different heights. Students then graph and analyze this data to explain energy transformations and explain why a ball will never bounce to its original drop height.
This lab leads to some great discussions in my classroom!