What makes FOSS so complete? Everything.
FOSS was conceived by the Lawrence Hall of Science to teach through hands-on active investigation, then refined by 100,000 teachers in the ultimate educational laboratory: America’s classrooms.

One comprehensive package
Recommended Pre-K-8 Scope & Sequence
FOSS Middle School |
Grade | Integrated Middle Grades | STEM Enrichment | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Grade 8 | Heredity & Adaptation* ES, LS |
Electromagnetic Force* PS, ES, E |
Gravity & Kinetic Energy* PS, E |
Waves* PS, E |
Planetary Science PS, ES |
Stem Enrichment: Variables & Design† Grades 5-8, E |
|||||||
Grade 7 | Chemical Interactions PS, ES, E |
Earth History PS, ES, LS |
Populations & Ecosystems ES, LS, E |
Stem Enrichment: Variables & Design† Grades 5-8, E |
|||||||||
Grade 6 | Weather & Water PS, ES, E |
Diversity of Life LS |
Human Systems Interactions* LS |
Stem Enrichment: Variables & Design† Grades 5-8, E |
|||||||||
PS: Physical Science content, ES: Earth Science content, LS: Life Science content, E: Engineering content
*Half-length courses
FOSS Pre-K-5 |
Grade | Physical Science | Earth Science | Life Science | STEM Enrichment |
---|---|---|---|---|
Grade 5 | Mixtures & Solutions | Earth & Sun | Living Systems | Stem Enrichment: Sound Design† |
Grade 4 | Energy | Soils, Rocks, and Landforms | Environments | Stem Enrichment: Sound Design† |
Grade 3 | Motion & Matter | Water & Climate | Structures of Life | Stem Enrichment: Sound Design† |
Grade 2 | Solids & Liquids | Pebbles, Sand & Silt | Insects & Plants | Stem Enrichment: Forces in Action† |
Grade 1 | Sound & Light | Air & Weather | Plants & Animals | Stem Enrichment: Forces in Action† |
Grade K | Materials & Motion | Trees & Weather | Animals Two by Two | Stem Enrichment: Forces in Action† |
Grade Pre-K | Full-year Observing Nature | |||
† STEM courses and modules can be purchased as a supplement to the FOSS curriculum or purchased separately for STEM electives or extracurricular activities.
FOSS: The one and only
Full Option Science System.TM
Every aspect of FOSS reflects the quarter century of classroom experience that’s gone into refining it.

Rural student William discovers FOSS
There is no high-speed train in William’s farming community, so FOSS doesn’t start his lesson with one. Instead it uses phenomena he can understand and care about.