Ulyana Horodyskyj
Broomfield, CO
Profile-background-check Background Check
This teacher successfully passed a thorough criminal background check with SterlingBackcheck. This badge verifies trusted teacher status.
Ulyana Horodyskyj

Ulyana H.

Broomfield, CO
Profile-background-check Background Check
This teacher successfully passed a thorough criminal background check with SterlingBackcheck. This badge verifies trusted teacher status.
Teaching Locations:
Profile-location-online Online
Teaching Locations:
Profile-location-online Online
Levels taught:
Middle School, High School, College
My name is Ulyana and I'm passionate about teaching and tutoring in creative ways! The important thing for me is that you learn the material as well as experience the joy of learning. I cater the learning to you! For seven years now, I have either tutored or taught in classrooms and in the field for all age groups, sharing the joy of science and math. Most recently I worked for National Geographic Student Expeditions, a program for high school students interested in learning photography, film, and field (outdoor) science. During the springtime, I am a visiting professor at Colorado College, teaching at the undergraduate level. My day job includes running my company, Science in the Wild, which gets kids and adults alike outside, learning and doing science around the world while on expedition.

About Ulyana H.

My name is Ulyana and I'm passionate about teaching and tutoring! I graduated with a B.S. from Rice University (Houston, TX), specializing in earth sciences (geology and chemistry). I did my Masters in planetary geology at Brown University (Providence, RI), and for my PhD, I trekked over 1500 miles in Nepal, studying glacial lake flooding hazards to Sherpa villages, as well as impacts of pollution on pristine high mountains, including Mt. Everest.

I have either tutored or taught, in classrooms and in the field, all age groups, sharing the joy of science, math - and learning in general! When I was in my teens, I participated in many science fairs and symposia at the national and international level. Then I went to college and grad school in science. Pretty much, science has been my life! For any of your science needs, with a special focus on astronomy and geology (earth sciences), I'm here to help. I can assist with physics, biology, chemistry and math (algebra, pre-calc, calculus). Given my experience in public speaking, the Microsoft Office suite (Excel, Powerpoint, Word) and writing, I can assist with that as well!

If you're interested in creative lessons - with a true focus on your learning experience, I'm your tutor! Often times when working out in the field in extreme locations (e.g., Antarctica and Mt. Everest), I have to MacGyver solutions on the fly. I want to teach you how to think. This skill will serve you well, long into the future.


Write a Review
8 Reviews
Profile-location-online Online

Ulyana is very nice, and my son really enjoys the lesson.

Posted Jun 25, 2019
Alan Y.
Profile-location-online Online

Perfect lesson! Dr. Ulyana is very nice, patient, and very professional.

Posted Jun 18, 2019
Tom C.
Profile-location-online Online

Ulyana is a very special young woman. In searching for an online teacher for my Daughter,I felt that "Uly" would be the correct choice. My Daughter has different abilities and therefore different needs as well as understanding. Ulyana has stayed dedicated over the months and my Daughter continues to grow. Uly's skill and understanding levels are excellent, but her strength of character in perseverance and ingenuity are directed toward securing meaningful success. Growth continues to be achieved in small steps with every lesson. I am forever grateful to and for Ulyana. My Daughter is a stronger more capable individual because of Ulyana. GRATEFUL,Tom C.

Posted Jun 11, 2019
Tom C.
Profile-location-online Online

Ulyana is a most competent ,dedicated teacher who has helped my special needs daughter progress with navigating technology. The situation has been most challenging, but Ulyana has continued with understanding and poise. She has reached out to me immediately to clarify the progress and circumstance which has allowed me to realize why I chose her initially. Her positive demeanor, understanding and willingness to accept a most challenging situation stands out uniquely. I support her in her endeavors completely. Sincerely,Tom

Posted Nov 6, 2018
Jenelle B.
Profile-location-online Online

shes really nice. i hope i get to see her again, shes a great teacher.
-jenelles daughter

Posted Jun 21, 2018
Profile-location-online Online

She was very knowledgeable and presented the information clearly. My writing greatly improved.

Posted Apr 16, 2018
Jennifer G.
Profile-location-home Student's Home

Great instructor!! Very nice! Helped in every way possible!

Posted Oct 17, 2017
Profile-location-online Online

Posted Jun 18, 2019

Photos & Videos

6 Photos & Videos


Apr 2016 - Present

Colorado College

Part-time position, teaching "Introduction to Global Climate Change" class at the undergraduate level.

Jan 2016 - Present

Science in the Wild

Science in the Wild is an adventure travel company that leads immersive and educational science expeditions around the world, teaching you about science and how to DO science. We show you everything you need to know to collect, analyze, and interpret scientific data - the art of science storytelling.

Jun 2017 - Jul 2017

National Geographic

Expedition leader and teacher for a National Geographic geology and climate "on assignment" high school program in Iceland.

Postdoc (research scientist)
Sep 2015 - Sep 2016

National Snow and Ice Data Center

During this one-year post-doc, I validated satellite-derived albedo (reflectivity) measurements of snow and ice with on-the-ground fieldwork in the Arctic and Himalaya. I also quantified the amount of black carbon and dust concentrations in natural snowpacks, spanning from Alaska, to Colorado, to the Canadian Arctic, to the Himalaya. The presence of these contaminants greatly increases melting of snow and ice.

Jun 2014 - Jun 2015

Girls on Ice

I was an instructor for a wilderness science education program for high school girls on Gulkana glacier, Alaska in 2015; and on Mt. Baker, Washington in 2014.


PhD - geological sciences
Sep 2010 - May 2015

University of Colorado Boulder

Master of Science - planetary geology
Sep 2007 - May 2010

Brown University

Bachelor of Science - earth sciences
Sep 2003 - May 2007

Rice University



Fluent / Native Proficiency


Limited Proficiency


Fluent / Native Proficiency


National Geographic Certified Educator
Apr 2021

National Geographic

Polar field guide
Apr 2020

PTGA (Polar Tourism Guides Association)

Presentation and communication skills; snow and ice crack awareness; navigation skills; expedition leader; small boat (Zodiac) awareness and driving skill
Wilderness First Responder
Oct 2019

NOLS (National Outdoor Leadership School)

80+ hours of medical training


Leif Erikson Young Explorer Award
Aug 2020

The Exploration Museum, Iceland

Jun 2017

The Explorers Club

Waitt Foundation grantee
Apr 2016

National Geographic

Fulbright fellow
Aug 2013

The Fulbright Program

Climber-scientist grantee
Sep 2012

United States Agency for International Development (USAID)


National Honors Society
Sep 2002
The National Honor Society (NHS) is the nation's premier organization established to recognize outstanding high school students. More than just an honor roll, NHS serves to honor those students who have demonstrated excellence in the areas of scholarship, leadership, service, and character. These characteristics have been associated with membership in the organization since its beginning in 1921.

Let Our Student Counselors Help You

We can match you with the perfect teacher and take care of all your scheduling needs.
Reserve Your Spot
change subject
  • {{ subject.value }}
{{ (view.locations.length > 1) ? 'Select a ' : '' }} Lesson Location
Other lesson locations may be too far away. show all
Ulyana's Availability
{{ time }}
{{ time }}
{{ time }}
Time Zone:
Ulyana's {{ (view.location && view.location.isStudio) ? 'Studio' : '' }} {{ (view.location && view.location.isTravel) ? 'In-Home' : '' }} {{ (view.location && view.location.isOnline) ? 'Online' : '' }} Lesson Pricing
{{ rate.duration }} minutes
{{ rate.locale_rate }}
{{ view.loadingText }}
100% Satisfaction Guarantee

100% Satisfaction Guarantee

Try the first lesson and if you’re not satisfied we'll refund any unused lessons.

Recently Viewed