- Pssc PhysicsUri Haber-Schaim, John H. Dodge et al.
- PSSC physicsJohn H. Dodge, Robert Gardner et al.
- Gardens of warRobert Gardner
- This is the way it worksRobert Gardner, Robert Gardner
- Bicycle Science ProjectsRobert Gardner
- Health Science Projects About Nutrition (Science Projects)Robert Gardner
- Electricity and Magnetism Science Fair ProjectsRobert Gardner
- Stellar Science Projects About Earth's Sky (Rockin' Earth Science Experiments)Robert Gardner
- Wild Science Projects About Earth's Weather (Rockin' Earth Science Experiments)Robert Gardner
- Chemistry Science Fair ProjectsRobert Gardner
- Energy Projects for Young ScientistsRobert Gardner
- Heavy-Duty Science Projects With WeightRobert Gardner
- Health Science Projects About Heredity (Science Projects)Robert Gardner
- Genetics And Evolution Science Fair ProjectsRobert Gardner
- Math in science and natureRobert Gardner, Robert Gardner et al.
- Health science projects about psychologyRobert Gardner, Barbara Gardner Conklin
- Weather Science Fair ProjectsRobert Gardner
- Forces and MachinesRobert Gardner
- Health Science Projects About Your Senses (Science Projects)Robert Gardner
- The Process-Focused OrganizationRobert Gardner
- Far-Out Science Projects About Earth's Sun And Moon (Rockin' Earth Science Experiments)Robert Gardner
- Communications (Yesterday's Science, Today's Technology)Robert Gardner
- Split-Second Science Projects With SpeedRobert Gardner
