The following is a necessarily incomplete list of sequences of courses that satisfy the requirement: "two courses are in a laboratory science with the first course prerequisite to the second course." The exact set of courses depends on what each science department offers each semester.
Any course used for the science requirement must have an "NW" (formerly NS) designation in the catalog (and there are some CHM, BIOS and EES courses that are not "NW" but rather "ND", meaning "not designated"). The sum of all the NW-designated science credits must be at least 12.
We list here only courses that contribute to a prerequisite sequences. These sequences add up to between 7 and 9 credits. The remaining credits to reach a total of 12 may consist of any NW-designated courses.
Astronomy
PHY 010 (fall only) (4) General Physics I [PHY 012], followed by ASTR 105 (spring only) Introduction to Planetary Astronomy (3)
PHY 011 Introductory Physics I (4) [PHY 012], followed by ASTR 105 (spring only) Introduction to Planetary Astronomy (3)
Biology
CHM 30 Introduction to Chemical Principles (4, includes lab), BIOS 41 (spring only) Biology Core I: Cellular and Molecular (3)
Chemistry
CHM 30 Introduction to Chemical Principles (4 credits, includes a lab), CHM 31 Chemical Equilibria in Aqueous Systems (4 credits)
CHM 30 Introduction to Chemical Principles (4 credits, includes a lab), CHM 110 (fall only) Organic Chemistry (3) [CHM 111 lab (fall only)]
CHM 30 Introduction to Chemical Principles (4 credits, includes a lab), BIOS 41 (spring only) Biology Core I: Cellular and Molecular (3 credits)
CHM 40 (fall only) Concepts, Models & Experiments (4 credits, includes a lab), CHM 41 (spring only) Concepts, Models & Experiments II (4 credits, includes a lab)
CHM 40 (fall only) Concepts, Models & Experiments (4 credits, includes a lab), CHM 110 (fall only) Organic Chemistry (3) [CHM 111],
CHM 40 (fall only) Concepts, Models & Experiments (4 credits, includes a lab), BIOS 41 (spring only) Biology Core I: Cellular and Molecular (3 credits)
Physics | *indicates optional 1-credit lab
PHY 11 Introductory Physics I (4) [PHY 12], PHY 21 Introductory Physics II (4) (note that PHY 21 additionally has a prerequisite of MATH 22)
PHY 10 (fall only) General Physics I (4) [PHY 12], PHY 13 (spring only) General Physics (3)
PHY 11 Introductory Physics I (4) [PHY 12], PHY 13 (spring only) General Physics (3)
Earth and Environmental Science
EES 002 (fall only) Introduction to Environmental Science (3) plus lab EES 022 Exploring Earth followed by EES 102 (spring only) Environmental Science and Sustainability (4)
EES 097 (fall 25 only) Geology and Geopolitics of Critical Minerals (3) plus lab EES 022 Exploring Earth (1) followed by EES 131 (spring only) Introduction to Rocks and Minerals (4)
EES 025 (spring only) Observing and Studying Nature (3) plus lab EES 022 Exploring Earth (1) followed by EES 152 (fall only) Ecology (4)
EES scheduling notes:
- Students who are minoring in EES may take a two-course sequence consisting of EES 080 and one of EES 115, 131, 153, 200. The EES minor requires a total of 15 credits in EES (3 more credits than the 12 needed if the full CSB science requirement is done with EES courses).