48 Engaging STEM Challenge Cards | Grades 1-5Looking for a fun and hands-on way to incorporate STEM learning into your classroom, library, or makerspace? These 48 STEM Challenge Cards are perfect for inspiring creativity, problem-solving, and engineering skills in kids from grades 1-5! Each challenge encourages students to design, build, and test their creations using recycled materials, LEGO bricks, and KEVA planks all while exploring key STEM concepts like engineering, forces, physics, des