Stem Challenges Learning Cards 2% plastic (PP - poly propylene) and the reinforced mesh center

and the reinforced mesh center allows ample air flow and prevents balls from rolling through

Sold as 6 packs for a total of 600 pieces

SKU: ERSMLE31052

Each pack includes 40 pieces in a glitter assortment

blue or green and can even flash on and off or continuously change colors

Stem Challenges Learning Cards 2% plastic (PP - poly propylene) and the reinforced mesh centerMPN: 005019 UPC: 044222258467 STEM Challenges for grades 2 5 provides a fun way to enhance STEM learning in the classroom. This boxed set includes 30 challenge cards10 each for the three categories of physical science, life science, and earth and space science. Designed to capture a student's attention, challenges are diverse, simple, and easy to complete and include these fun activities: creating structures and bridges, experimenting with camouflage,