Shop You can find all of my STEM Challenges organized by category in my STEM Challenge Shop and on Teachers Pay Teachers. You’ll also find them listed below. View cart “St. Patrick’s Day STEM Challenge: Leprechaun Lockdown Paperless Version” has been added to your cart. Showing 17–20 of 20 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Summer STEM Challenge: Keep it Cool / Make it Melt $3.98 Add to cart Summer STEM Challenge: Pick & Pack $3.98 Add to cart Summer STEM Challenge: Wicked-Fast Water Slide $3.98 Add to cart Summer STEM Challenge: Wicked-Fast Water Slide PAPERLESS $3.98 Add to cart ← 1 2