STEM Elf, Reindeer, or Santa Zip Line Challenge will engage all your students during the holiday season. Students plan, design, and engineer a zip line that can carry a toy elf, Santa, or reindeer across a line. Your students will love going through the design process as they cover the Next Generation Science 3-5-ETS1-1 & 2.This activity can also be used for STEAM Activities, STEM After School Programs, Summer Programs, Clubs, Maker Spaces, or at home. If you have purchased the Skelton z