El Granada uses the Full Option Science System (FOSS) curriculum developed by the Lawrence Hall of Science. All lessons are lab-based and actively engage students in scientific method and inquiry.

The best way for students to appreciate the scientific enterprise, learn important scientific and engineering concepts, and develop the ability to think well is to actively participate in scientific practices through their own investigations and analyses. The FOSS Program was created specifically to provide students and teachers with meaningful experiences through engaging with this active participation in scientific practices.

Thanks to the PTO's commitment to science education, students in 4th & 5th grade learn science through hands on experiments that reinforce state standards.