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Dark mode and accessibility

STEMpump.org follows your device's appearance setting. Switch your device (or browser) to dark mode and the site switches with it. Printed pages and PDFs always use light colors…

Getting started on STEMpump.org

STEMpump is a free library of courses and camps across science, technology, engineering, art and math, written by students. There's nothing to sign up for: open any course and…

Learning on your phone

STEMpump.org works on any phone browser, and lessons are laid out for small screens. At the bottom of every lesson, a toolbar has previous and next buttons. They move across…

Lesson of the Day and daily picks

Not sure what to learn today? The Library's Discover page picks three things for you every day: The Lesson of the Day: a lesson, quiz or project from any course A featured course…

Reporting a problem or a mistake

Found a typo, a wrong quiz answer, a broken link or a page on STEMpump.org that won't load? We want to know. Open the lesson's Options menu and choose Report an issue. It takes…

Saving favorites

Favorites keep the courses, camps and lessons you want to come back to in one place. Courses and camps: press Favorite (the star) at the top of the course or camp page, or on its…

Searching STEMpump

The search bar at the top of every page searches all of STEMpump at once: Courses and camps Subjects Chapters Individual lessons, quizzes and projects Results show up as you type…

What's new in STEMpump.org 5

STEMpump.org 5 was rebuilt from the ground up. It's faster, it works like the STEMpump App, and it remembers your learning. Every course and camp is still free, with no account to…

Where is my progress saved?

STEMpump doesn't have accounts. Instead, your browser remembers your learning on the device you're using: Which lessons you've opened and completed, and where you left off in each…

No longer supported

What happened to STEMpump Dice?

STEMpump Dice picked a random course or camp for you to try. It lived in the Library on STEMpump.org and in the STEMpump App 4, where you could reroll as many times as you liked…

STEMpump Support

Still need help?

STEMpump is run by a small team of volunteers. We read every message and usually reply within a few days.


  • Email us

    Questions, feedback, or a problem to report: a typo, a wrong answer or something broken. Send us the link and what you saw.

    support@stempump.com
  • Contribute

    Write a course, improve a lesson or share an idea.

    How to contribute