Ulyana Horodyskyj

Ulyana H.

Broomfield, CO
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Lesson Details


Levels Taught:
Beginner, Intermediate, Advanced
I am a native English speaker and able to help with reading, reading comprehension, writing and grammar.
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Ulyana teaches



Ulyana passed a background check that includes a SSN verification, national criminal record check, and sex offender registry search. Learn More
Ulyana delivers an exceptional lesson experience and ranks in the top 15% of our teachers nationwide.
Teaches students:
and Ages 5+

Teaching since:

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. During my years there, I traveled quite a bit - including to Antarctica! - and took part in many science outreach activities with young students. While doing a Masters in planetary geoscience at Brown University (Providence, RI), I gained field experience in Iceland and used it as a research analog to past climate conditions on Mars. 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.

For seven years now, 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! 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. Our most recent was to the top of Kilimanjaro in Tanzania, Africa.

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 also assist with physics, biology and chemistry. The sciences are interrelated and I've used them all in the past and in my current work. The same goes for math.

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.

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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 international team of scientists, technicians, engineers and local citizens, leading immersive and educational adventure science expeditions around the world.

The company aims to make science accessible for anyone with the curiosity to learn more about the planet's landscapes and how they are changing. We trek, climb, ski, and paddle the wilds, providing you with opportunities for hands-on field experimentation and participation in cutting-edge research in some of the most remote parts of the world.

For upcoming trips, please see: http://scienceinthewild.com

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Jun 2017 - Jul 2017
National Geographic

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

Mission commander
Sep 2016 - Oct 2016
NASA Johnson Space Center

In September/October 2016, I served as mission commander for a NASA Human Exploration Research Analog (HERA) XII mission. HERA is "a unique three-story habitat designed to serve as an analog for isolation, confinement, and remote conditions in exploration scenarios."

Research included behavioral health (group dynamics, isolation, confinement); human factors (interactions with the confined station environment); exploration medical capabilities (self-diagnosis and treatment); and communication (delayed communication and self-sufficiency) while on simulated mission to an asteroid.

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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.

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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
Fluent / Native Proficiency


Wilderness First Responder
Nov 2016
NOLS (National Outdoor Leadership School)

80+ hours of medical training


Jun 2017
The Explorers Club
Waitt Foundation grantee
Apr 2016
National Geographic
Fulbright fellow
Aug 2013
The Fulbright Program
Climber-scientist grantee
Sep 2012

Photos & Videos

Skyping with a classroom and teaching the students all about how fun science can be!

Teaching a local Sherpa in Nepal how to collect snow samples for scientific research purposes. This was during my Fulbright year in 2013/14.

Studying a geological outcropping in the Andes (South America).

Working in the Himalaya - this is my office!

Working for Girls on Ice, a program meant to teach underprivileged girls how to climb mountains as well as learn science and math.

Using a big boulder as a "chalkboard" for teaching in the field. :)


1 Review

Write a Review
Jennifer G. Oct 17, 2017
ESL · In home

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

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