Free Interactive Tools for Science & Math
301+ tools and 238+ virtual labs across 10 subjects. All free, all in your browser.
See What You Can Explore
Periodic Table Explorer
Interactive periodic table with element details, trends, and electron configurations
Projectile Motion Calculator
Visualize trajectories with adjustable angle, velocity, and gravity
Sorting Algorithm Visualizer
Watch sorting algorithms step through data with animated bar comparisons
Unit Circle Explorer
Understand angles, radians, and trig values with an interactive unit circle
Conic Sections Explorer
Visualize ellipses, hyperbolas, and parabolas with adjustable parameters
Derivative & Integral Visualizer
See derivatives, integrals, and rates of change plotted in real time
Probability Distributions Explorer
Explore normal, binomial, Poisson, and more with interactive parameters
Compound Interest Calculator
Visualize how investments grow over time with compound interest curves
Punnett Square Calculator
Set up monohybrid and dihybrid crosses with visual genotype grids
Star Lifecycle Visualizer
Trace a star from nebula to remnant with HR diagram placement
Visual Learning
Study Infographics
Annotated posters for science and math. Free to view and download.
New for Ages 5 to 7
Kindergarten & Grade 1 Tools & Labs
17 hands-on tools and 16 investigation labs for counting, shapes, weather, living things, and simple engineering. Built with big touch targets and bright visuals for the youngest learners.
For Teachers & Parents
Tools for Your Classroom
Browse 300+ tools and 200+ labs organized by curriculum standard (CCSS, NGSS, CSTA, AP) or explore ready-to-use mission packs built for specific grade bands and topics.
Curated Lesson Paths
Mission Packs
Sequences of tools and labs built around a single topic. Work through the steps in order for a complete lesson arc.
Forces & Motion Mission
Explore how forces act on objects — from pushes and pulls to projectile trajectories, energy conservation, and simple machines.
Algebra Essentials Mission
Develop algebraic reasoning from one-variable equations through systems, inequalities, and quadratic functions step by step.
Cell Biology Mission
Explore the building blocks of life — cell structure, photosynthesis, cellular respiration, enzyme kinetics, and the cell cycle.
Calculus Core Mission
Build calculus from the ground up — limits, derivatives, the Fundamental Theorem, and definite integrals — with visual tools at every step.
Chemistry Fundamentals Mission
Build atomic literacy from the periodic table through electron configuration, Lewis structures, bond polarity, and balancing equations.
AP Statistics Mission
Cover the full AP Statistics curriculum — distributions, sampling, confidence intervals, hypothesis testing, regression, and inference.
Student Handouts
Free Printable Worksheets
Print-ready worksheets with student and answer key versions. Covers math, science, language arts, and social studies from Kindergarten through Grade 12.
For Teachers and Students
Free Classroom Resources
Subject-specific resource pages that group tools, labs, and study posters by audience and curriculum.
Virtual Labs
238+ guided experiments with data collection, visualizations, and lab reports
Gas Laws Lab
Explore Boyle's, Charles's, and Gay-Lussac's laws with animated particles
Titration Lab
Watch pH curves develop in real time with indicator color changes
Circuit Builder Lab
Build series and parallel circuits with animated current flow
Standing Waves Lab
Visualize standing wave patterns, nodes, antinodes, and resonance frequencies