After PH 335
Gateway: PH 335
Building the department map…
Department paths
Courses with no prerequisites inside the department that unlock the most downstream work.
The shortest canonical route from each entry point to a gateway course.
Generated from Oregon State University’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
Each of these unlocks the largest share of downstream work on this map. Courses from other departments can appear here when they genuinely gate PH coursework.
Intro tiers at the top, advanced work below; arrows point from a prerequisite to the course it unlocks. Courses from other departments appear where they gate PH work. Click any course to see what it requires and unlocks without leaving this page; hovering lights up its neighbors. The lists on this page carry the same courses in text form.
Showing the 47 PH and feeder courses that have prerequisite links. 75 more PH courses have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
The concentrations and majors that build on PH, and how their requirements are structured. Expand a program to see which courses satisfy each group, then plan it in the Planner.
Required Core2 required · verify with the official sheet
Restricted Electives1 required · verify with the official sheet
Select any upper-division PH courses for 6 credits; Select additional PH or other STEM courses for 6 credits
WIC Requirementschoose 1
Thesis Path; Non-Thesis Path; Upper-Division PH Elective (3 credits required)
Physical Science: Physics Sequencechoose 1
All ofall required
1 course from1 required
Chemistry Corechoose 1
Inorganic Emphasis; Analytical Emphasis
Choose 1choose 1
1 course from1 required
Engineering+ (College of Engineering Core)all required
All ofall required
1 course from1 required
Biology Sequencechoose 1
All ofall required
1 course from1 required
1 course from
Upper-level clusters, grouped by the gateway that opens them.
The deepest prerequisite chains in PH. These are the routes that take the most semesters to climb.
6 courses deep, ending at PH 426
6 courses deep, ending at PH 427
6 courses deep, ending at PH 483
5 courses deep, ending at PH 493
1 course from1 required
Chemistry Sequencechoose 1
All ofall required
Science Education1 required
Physical Science: Chemistry Sequencechoose 1
All ofall required
Life Science: Biology Sequencechoose 1
All ofall required
All ofall required
Earth and Space Sciencechoose 1
Astronomy; Atmospheric Sciences; Geology; Oceanography
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
Science Education1 required
Climate Science Electives2 required · verify with the official sheet
Select 21 credits from any of the following categories:; Mitigation, Energy, and Climate Policy; Social Sciences and Humanities; Related Physical and Biological Sciences; Climate Skills
Biochemistry or Physical Chemistrychoose 1
All ofall required
All ofall required
Science Education1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
ECE/CS/ENGR Required Coursesall required
Math or Science Electives; Complete the following for a minimum of 7 credits of math or science electives:; Select any additional BB, BHS, BI, CH, MB, MTH, PH, ST or Z course at 200-level or above
ECE Junior Core2 required · verify with the official sheet
Junior Design; Foundations; Select four courses from the following:; Junior Electives; Select 12 credits from the following courses, including at least 3 credits from ECE:; Any ECE, CS or AI course at 300-level or above
ECE Senior Corechoose 1
Senior Design; Sequence A; Sequence B; Senior Electives; Select 24 credits from the following courses, including at least 16 credits from ECE:; Any ECE, CS or AI course at the 400-level or above
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
Remaining Core Education Credits15 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
Geology Foundation Coursesall required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
1 course from1 required
Geology Elective Specialization2 required · verify with the official sheet
Select four courses from the following categories:; Solid Earth; Natural Hazards; Earth Surface; Credits from the following courses may count toward an elective specialization with advisor approval:; 400-level courses in other departments or programs (e.g., ATS, OC)
1 course from1 required
Chemistry Sequencechoose 1
All ofall required
Science Education1 required
All PH courses in the Oregon State catalog
Grade medians are for verified students. Sign in with your school email to see them.
Use your school emailNo section schedule with instructor names for PH yet.
No clubs or organizations on record under PH yet.
This shows once five students share their club memberships.
PH does not run a page here yet. When it does, its events show up here and on the Oregon State campus feed.