This craft project is more STEAM then stem allowing the kids to add color and design to their building project. STEAM is Art thrown in to STEM . The full tutorial is here.
Science, Technology, Engineering and Mathematics (STEM, previously SMET) is an acronym that refers to the academic disciplines of science[note 1], technology, engineering and mathematics.[1] The term is typically used when addressing education policy and curriculum choices in schools to improve competitiveness in science and technology development. It has implications for workforce development, national security concerns and immigration policy.[1] Source Wikipedia