"This is BY FAR the most comprehensive, FUN low prep STEM bundle I’ve ever bought. Love it, and so do the kids!" - Nikki M.Looking for easy prep, fun to solve STEM challenges for kids?! This epic bundle combines ALL of my STEM challenges into one easy purchase - my best selling landmark cards, toothpick and playdough STEM structures, weight and length challenges... they're all here! And that means you'll get an entire year of STEM challenges in one easy download.Each activity pack includes easy