CNAS Undergraduate Academic Advising Center

Undergraduate CNAS Majors

Selecting and/or Changing a Major

Undergraduate students in the College of Natural and Agricultural Sciences have 17 majors available, with a total of 29 options or tracks. While it is possible to major in a straightforward discipline such as Physics, some options are interdisciplinary in scope -- for example, Environmental Toxicology or Statistical Computing.

Guide to Changing/Selecting a Major

Please note
: Advisors will be available to discuss Major Changes during the 2nd, 3rd, 4th, and 10th week of each quarter via appointment or a change of major workshop.  Review change of major criteria for your major of interest.

CNAS Majors fall into one of three categories:
Life Science Majors
biochemistry major icon

Emphases: Biology, Chemistry, and Medical Sciences.
Biochemists study life at the chemical, molecular, and cellular level.
View Brochure || Change of Major Criteria

biological sciences major icon
Biological Sciences
*The Biological Sciences major is currently under a moratorium and no new change of major petitions to this major will be approved at this time.* 
biology major icon

Faculty and students in the Department of Biology are working in many areas of the life sciences, including animal behavior, behavioral endocrinology, bioinformatics, cell biology, and conservation biology.
View Brochure || Change of Major Criteria

biological sciences major icon
Cell, Molecular, and Developmental Biology

Cell, Molecular, and Developmental Biology (CMDB) is a discipline that focuses on the structure and processes used by organisms during growth and differentiation.
View Brochure || Change of Major Criteria

botancy and plant sciences major icon
Plant Biology

The Department of Botany and Plant Sciences is unique in its integration of basic and applied plant sciences. It has particular strengths in plant cell biology, plant responses to environmental stresses, plant ecology, genetics, genomics, and evolution.
View Brochure || Change of Major Criteria

entomology major icon

The Department of Entomology at UCR, ranked among the top five in the nation, studies insects at the molecular, cellular, organismal, and population levels.
View Brochure || Change of Major Criteria

biology major icon

Microbiology is the study of microscopic organisms including bacteria, viruses and fungi.
View Brochure || Change of Major Criteria

neuroscience major icon

The Department of Molecular, Cell and Systems Biology, which oversees the Neuroscience major, takes multidisciplinary approaches to understanding basic cellular processes in tissues, including the nervous system, as well as more integrative levels of analysis, including behavior.
View Brochure || Change of Major Criteria

Mathematical Sciences Majors
mathematics major icon

Options: Biology, Chemistry, Economics, Environmental Sciences, Physics, and Statistics.
Mathematics is the study of the relationship between objects in the universe expressed numerically, and as such is the language of science.
View Brochure || Change of Major Criteria

Mathematics for Teachers of Secondary School

Mathematics for Secondary School Teachers is a major designed to prepare those who wish to teach high school level mathematics.
View Brochure || Change of Major Criteria

statistics major icon

Options: Quantitative Management and Statistical Computing
The Department of Statistics is renowned for its emphases in statistical computing and quantitative management, and its Statistical Consulting Collaboratory.
View Brochure || Change of Major Criteria

Physical Sciences Majors
chemistry major icon

Options: Chemical Physics, Environmental Chemistry, and Pure Chemistry
Chemistry, the study of matter and its changes, is typically divided into analytical, environmental, inorganic, materials, organic, and physical.
View Brochure || Change of Major Criteria

 geoscience education major icon
Earth Sciences

The Earth Science major covers all scientific studies related to the planet Earth, including the study of Earth composition, structure, processes, and history.
View Brochure || Change of Major Criteria

environmental major icon
Environmental Sciences

Options: Environmental Education, Environmental Toxicology, Natural Science, Soil Science.
The major is designed for environmentally-related careers in business, industry, or government.
View Brochure || Change of Major Criteria

geology major icon

Options: General Geology, Geobiology, Global Climate Change, and Geophysics.
Geology majors study the structure, composition, processes and history of the Earth.
View Brochure || Change of Major Criteria

geophysics major icon

Students who choose the Geophysics major employ field, laboratory and computational methods to study the problems in Earth Science.
View Brochure || Change of Major Criteria

physics icon


Students of Physics come to understand the physical principles of the universe by studying such topics as: astrophysics, astronomy, laser physics, electrodynamics, elementary particle physics, and condensed matter physics.
View Brochure || Change of Major Criteria

More Information

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Career OpportunitiesUCR Libraries
Campus StatusDirections to UCR

Advising Center Information

CNAS Undergraduate Academic Advising
1223 Pierce Hall

Regular office hours:
Monday, Tuesday, Thursday, Friday: 9:00am - 12:00pm & 1:00pm - 4:00pm
Wednesday: 10:00am- 12:00pm & 1:00pm - 4:00pm

Tel: (951) 827-7294 or (951) 827-3102
Fax: (951) 827-2243 or (951) 827-2798
E-mail: cnasstudent@ucr.edu