A-Z Directory of All 4-H STEM Toolkits 4th H for Health –  (Grades 3 – 5) Alewives – (Grades 6 – 8) Animal Science: Beef Learning Lab – (Grades 6 – 8) Animal Science: Dairy Learning Lab – (Grades 6 – 8) Animal Science: Horse Learning Lab – (Grades 6 – 8) Animal Science: Sheep