Simulations
Hands-on lessons, interactive books and workshops where you learn by doing.
Grades 6-12 STEM Explorer
Lessons, simulations, and quizzes for middle and high school math and science. School login required.
Open STEM Explorer →Premium eBooks
Interactive books: math, chemistry, art in STEAM, robotics, Arduino, and a self-study quiz. Login required.
Open Premium eBooks →Workshops
Algebra, STEM workshops, and entrepreneurship. Login required.
Open Workshops →AI Education
Learn how artificial intelligence works with a simple study guide and hands-on simulations: clustering, neural networks, pathfinding, and more.
Explore AI →STEM Hands-On
33 hands-on simulations plus 5 interactive labs: physics, chemistry, biology, math, computer science, and engineering.
Open STEM Hands-On →STEM eBooks
5 free interactive eBooks: nature, energy, bridges, Python coding, and sports science. Every page has a hands-on simulation.
Open STEM eBooks →Games
Practice STEM skills with trivia, riddles, multiplayer challenges and mobile games.
STEM Trivia
15 multiple-choice questions in 5 rounds: biology, chemistry, physics, computer science, engineering, and space. Explanations after every answer.
Play STEM Trivia →STEM Riddles
16 brain teasers about DNA, stars, circuits, code, and more. Get a hint if you're stuck. Free, no login needed.
Solve STEM Riddles →Multiplayer STEM Games
Play live challenges with friends: Chemical Challenge, Projectile Path, Logic Gate Challenge, and Vector Voyage. Free, no login needed.
Play with friends →CyberSwarm: Cryptocraft
A network defense game about ciphers, hashing, and digital signatures. 8 missions with quizzes. Free to play, no login needed.
Play CyberSwarm →Algebra Rush
A fast-paced mobile game for practicing algebra. Free on Android from Google Play.
Get it on Google Play →Python Programming Game
A new mobile game for learning Python programming, one fun challenge at a time.
Coming soonVideos
Watch video series on AI, science, math and STEM careers.
AI Lessons
A step-by-step video course on artificial intelligence: machine learning, neural networks, AI ethics and more.
Watch videos →Did You Know?
Short science explainers and hands-on experiments that answer everyday "why" questions.
Watch videos →STEM Talk
Interviews with students, teachers and STEM professionals about their careers, ideas and advice.
Watch videos →Podcasts
Student-led podcast episodes about science, sustainability and inspiring people.
Watch videos →Math Series
Short, easy-to-follow math lessons made by students, one skill at a time.
Watch videos →STEM Sparks
Quick STEM shorts that inspire big ideas in under a minute.
Watch videos →Live learning
Join live tutoring, mentoring and lessons from high school and college students, or host your own.