STEM Solutions for K-8 Science Education

More than a Program, It's a Philosophy.

Girl blowing bubbles that pass above the FOSS logo

Over 25 years of research brings you the best in hands-on learning.

FOSS programs for elementary and middle school students bring science to life through active investigation. Much more than a collection of activities, FOSS seamlessly integrates hands-on science exploration with reading informational texts, writing in science notebooks, interactive technology, and embedded assessment to develop a deep and lasting understanding of science.

Which Edition is Right for You?   

Quality. Value. Convenience.

Accept nothing less than genuine FOSS & DSM replacement parts.

Delta Education is the only place to shop for Original Equipment Manufacturer (OEM) parts,
hand-selected by the developers of FOSS and Delta Science Modules.