This document includes a lesson plan and very straight forward student-facing materials. The lesson is aligned to NGSS performance expectation 5-ESS3-1 and is intended to be an engage/explore activity before diving into the direct instruction for the performance expectation. The 45 minute- 1 hour activity involves students "mining" chocolate chips from the cookie and observing the impact the "mining" has on the surrounding "environment". It asks students to think about economic and environmental implications of mining and does so in an engaging way. This lesson could also be used with 6th or 7th graders with other NGSS Earth Science performance expectations about human impact on the environment.