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I finished my PhD in Environmental Science in 2020 (at the Univ. of Windsor in Ontario, Canada), and completed a postdoc at ETH in Zurich, Switzerland. I am now an independent contractor and science writer. Some of my work is on my website, www.karistahudelson.com. I am passionate about education and truly enjoy helping students with science and math courses. I have tutored for undergraduate level chemistry, algebra, and biology courses and taught undergraduate level environmental science, biology, genetics, and molecular biology laboratory sections.

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Karista’s Qualifications

Education & Certification

Undergraduate Degree: Oklahoma State University-Main Campus - Bachelor of Science, Biochemistry

Graduate Degree: University of North Texas - Master of Science, Environmental Science

Graduate Degree: University of Windsor - Doctor of Philosophy, Environmental Science


Arctic and Antarctic environments, sailing, dogs, cross stitch, hiking, R programming, diatom identification, Indigenous cultures of North America

Tutoring Subjects

10th Grade AP Biology

10th Grade AP Chemistry

10th Grade Biology

10th Grade Chemistry

11th Grade AP Biology

11th Grade AP Chemistry

11th Grade Biology

11th Grade Chemistry

12th Grade AP Biology

12th Grade AP Chemistry

12th Grade Biology

12th Grade Chemistry

6th Grade AP Biology

6th Grade AP Chemistry

6th Grade Biology

6th Grade Chemistry

7th Grade AP Biology

7th Grade AP Chemistry

7th Grade Biology

7th Grade Chemistry

8th Grade AP Biology

8th Grade AP Chemistry

8th Grade Biology

8th Grade Chemistry

9th Grade AP Biology

9th Grade AP Chemistry

9th Grade Biology

9th Grade Chemistry

Advanced Chemistry

Advanced High School Biology

Advanced/Honors Biology

Atmospheric Chemistry






Cell Biology


College Chemistry

Developmental Biology

Evolutionary Biology

General Biology

Graduate Level Biology

Honors Biology

Human Biology

IB Biology

IB Biology HL

IB Biology SL

IB Chemistry

IB Chemistry HL

IB Chemistry SL

Inorganic Chemistry

Marine Biology

Marine Chemistry

Mathematical Biology


Middle School Biology

Middle School Chemistry

Molecular Biology

Plant Biology

Pre-AP Biology


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