Welcome to Mr. Klempke's Science page!Mr. Klempke is a 6th grade Science teacher at Gentry Middle School. He has been teaching for 23 years total, with 13 of them being at Gentry and 20 of them in Columbia Public Schools. In sixth grade Science, we explore many areas. The main units we cover are Measurement, Cells and Living Things, Force and Motion, Energy and Aquatic Ecosystems..