• Astro-simulations: Astronomy simulations and animations by the Columbia Center For New Media Teaching And Learning

• GEAS project astronomy laboratory exercises: The General Education Astronomy Source (GEAS) project is an astronomy education program based at New Mexico State University

• SkyServer Projects: Run by the Astrophysical Research Consortium, SkyServer Projects has activities using the Sloan Digital Sky Survey. Categories include basic, advanced, and research challenges.

• Chemistry Modules: Interactive learning modules by CK-12

• ChemReaX: Chemical reaction modeling and simulation webapp from ScienceBySimulation.

• Virtual Chemistry Experiments: Collection of interactive web-based chemistry tutorials.

• Mixed Reception: Solve a mysterious death by gathering clues, interviewing suspects, and analyzing evidence.

• The Virtual Lab: Online simulation of a chemistry lab designed to help students link chemical computations with authentic laboratory chemistry. By the ChemCollective.

• Titration screen experiment: This resource allows students to run their own titration experiment. Includes teacher notes.

• Chemistry Tutorial: Materials include simulated experiments and self-tests.

• Organic Chemistry Laboratory Tutorials

• ChemSims: Builds on PhET simulations with instructional materials

• Nanome: VP platform to interact, experiment and design in 3-dimensional virtual space (free subscription tier)

• Chemix: Draw lab diagrams

• CheMagic: Virtual model kit

• BioMan Biology: Learning games, review games, virtual labs and quizzes to learn about cells, ecology, genetics, physiology, and more!

• Quant Bio Online (hub): Modules created by CUBES partners designed to teach quantitative skills in a variety of biological contexts and will work well in an online setting with minimal adaptation.

• HHMI BioInteractive: Data-rich activities, case studies, high-quality videos, and interactive media designed to connect students to big ideas in biology, promote engagement with science practices, and instill awe and wonder about the living world.

• Biology Simulations: Simulations to help students to learn about biology and practice data analysis skills through experimentation.

• eSkeletons: Interactive environment in which to examine and learn about skeletal anatomy through osteology database at University of Texas at Austin.

• Foundational concepts and techniques in Biotechnology: LabXchange cluster includes simulations, assignments, video, and more!

• Bacterial Identification Virtual Lab: This interactive, modular lab explores the techniques used to identify different types of bacteria based on their DNA sequences.

ActivEpi Web: Electronic textbook for teaching epidemiology that includes interactive quizzes, exercises, and video.

Solve the Outbreak: CDC simulation of a virus outbreak (also available for mobile on iOS and Android)

• Virtual Fetal Pig Dissection: Whitman College virtual dissection to explore introductory mammalian anatomy and physiology.

• The Whole Frog Project: Explore the anatomy of a frog by using data from high resolution MRI imaging and from mechanical sectioning, together with 3D surface and volume rendering software to visualize the anatomical structures of the intact animal.

• The Science Bank: Alternatives to Animal Use in Education (hub): This is a portal to online dissection resources. Contains links to non-free resources.

• Molecular Expressions Virtual Microscopy: interactive Java-powered virtual microscopes explore specimen focus, illumination intensity, magnification, and translation, operating essentially in a manner that is identical to real-life microscopes.

• Virtual Microscope: NASA-funded project that provides simulated scientific instrumentation for students and researchers worldwide as part of NASA's Virtual Laboratory initiative.

• Evolved: Cases for Education Evolution: Case studies that track the evolution of traits from their origination in DNA mutation, to the production of different proteins, to the fixation of alternate macroscopic phenotypes in reproductively isolated populations.

• StarGenetics: Mendelian genetics cross simulator developed at MIT. Simulates mating experiments between organisms that are genetically different across a range of traits to analyze the nature of the traits in question. Its goal is to teach students about genetic experimental design and genetic concepts.

• Gelbox: Simulation tool to help the user understand how changing experimental input parameters can affect the data output from gel electrophoresis.

• Gel Scramble: Gel Scramble is an instructional tool for teaching molecular neurobiology that requires only a computer.

• Case It! Molecular Biology Simulations for Case-Based Learning in Biology: Performs common laboratory procedures on any DNA or protein sequence, and can be downloaded free of charge for educational use. (Requires Windows or MacOS)

• Learn.Genetics: Interactive techniques labs, online lessons in genetics, cell biology, evolution, human health, plants, neuroscience, ecology by Genetic Science Learning Center at the University of Utah

• Energy3D: Simulation-based engineering tool for designing green buildings and power stations that harness renewable energy to achieve sustainable development.

• ClimateSim: Climate-change simulation app from ScienceBySimulation. Allows users to model scenarios of greenhouse gas (GHG) emissions in the current century and simulates the first-order response of the earth system.

• The Habitable Planet: Video course for high school teachers and college-level instruction that includes interactive labs.

• HTML5 Simulations: Experiment with climate change.

• American Museum of Natural History teaching modules: Open access teaching modules include practical exercises in biodiversity conservation that apply fundamental concepts and develop critical skills (some modules are available in multiple languages)

• Geology Labs On-Line: Exercises with virtual earthquake. dating, and river.

• Jules Verne Voyager: Interactive map to explore geological features.

• Physical Geology 101: Lab materials that include interactive exercises.

• Virtual Microscope: Has full range of rock types native to Earth and beyond.

• Teaching Resources in Structural Geology: Resources from School of Earth Sciences of the University of Leeds that includes virtual field trips and virtual mapping.

• Mineral 1.0: Browsable online mineral database (with photos) and interactive quizzes/tests.

• Virtual Field Trip Guides: University of Texas collection of virtual field trips, organized by region.

• Interactive Physics Modules: Interactive learning modules by CK-12

• Physics Simulations: Interactive simulations.

• HTML5 Simulations: Experiment with physics principles such as motion and force.

• the Physics Classroom: Simulations, concept builders, skill-building exercises, and game-like challenges. Tablet-friendly.

• Open Source Physics: Simulations, modeling, and curriculum tools.

• The Physics Aviary: Cross-platform, run-anywhere programs to help physics students around the world master the big ideas in physics. Tons of labs.

• oPhysics: The oPhysics website is a collection of interactive physics simulations.

• Algodoo: Draw and interact with physical systems on your computer. Standalone program.