Are you looking for STEM challenges to do with unsual holidays? National Jelly Bean Day is celebrated on April 22nd! Can your team transport a bag of jelly beans in the fastest time using a zipline? Jelly Bean Zipline Challenge Materials Needed: (per classroom) - small plastic bathroom cups (1 per team) - jelly beans (one bag of the same amount per team) - string or yarn (for the zipline and cup attachment) - straw (one per team) - timer - glue, tape, and scissors This a really fun STEM Challenge that gets kids working to complete a fun and difficult challenge, students must move jelly beans down a zipline in the fastest time! *This challenge is also part of a larger STEM Calendar Challenges for April Engineering bundle that includes 5 different challenges for holidays in April.