About SciSim

Free interactive science simulations for students in grades 6–12 and their teachers. No sign-up needed, no ads.

What is SciSim?

A free website of 337 interactive science simulations across biology, Earth and space, physics, chemistry, math, statistics, computer science and neuroscience. You change something and watch what happens: rotate a 3D cell, fire a neuron, tilt the Earth, mix an acid and a base.

• Missions, quizzes and printable worksheets on many pages.
• Made for grades 6–12, with extra “Going further” parts for high school.
• Works on Chromebooks, laptops and phones. Nothing to install.

Who makes SciSim?

SciSim is a small, independent project. The SciSim team plans, builds and checks every simulation. We also build new topics when students and teachers ask for them; you can see those on the Community Requests page and send your own on Request a simulation.

How do we keep the science right?

Facts and numbers come from standard textbooks, original research papers and science agencies, and every page lists its references. New and rebuilt pages are tested and reviewed before they go live, and reported mistakes are checked and fixed. Read the details on How we check our science.

Free and independent

No ads and no sponsored content. Printable lesson packs made from the simulations are sold separately by SciSim Science Labs on Teachers Pay Teachers; you never need one to use the site. SciSim at scisim.org is not connected to other websites that use a similar name.

Your privacy

You can use every simulation without an account. Without one, mission progress and quiz results stay in the browser on your own device. Read the privacy page for the details.

Questions