National 4-H Council has migrated their 4-H STEM Lab resources to the 4-H at Home webpage: https://4-h.org/about/4-h-at-home/. In the middle of the page, you can search for activities by topic (agriculture, chemistry, etc.) and grade level.
Additionally, here are all the 4-H STEM Lab lessons (saved as individual PDF files) as of February 2020: https://outlookuga-my.sharepoint.com/:f:/g/personal/kaseyb_uga_edu/En4qE88ryhhEgDbHbDXUTwIB8UrWRq8cqPgOcWCOUtxheQ?e=lRLNWn.
Looking for more STEM resources? Check out one of my new favorite materials – The James Dyson Foundation’s Challenge cards: https://www.jamesdysonfoundation.com/resources/challenge-cards.html. This download contains 44 easy-to-implement science and engineering activities.
We hope you find these additional science resources helpful and most importantly that your teens learn while having fun completling them. The challenge cards in paticular are a great resource for families and base staff.