Published concept labs
State PSC concept study map
A registry-backed set of published quantitative and general-science labs for concept review alongside your state commission's current syllabus and materials.
How to use this page
Open a lab, vary one input at a time, and write down the relationship you observe. Then return to your textbook or problem set and explain the same relationship without the visual aid.
Data and quantitative reasoning
Explore probability, descriptive statistics, and equations through the published mathematics tools.
Published interactive lab
Probability Simulator – Distributions & Random Events
Explore probability with interactive simulations: flip coins, roll dice, sample distributions, and visualize the central limit theorem. Build intuition for random variables and expected value.
Concepts: probability, random variables, probability distributions
Published interactive lab
Statistics Explorer – Data Analysis & Hypothesis Testing
Analyze data with interactive statistics tools: compute descriptive statistics, visualize distributions, run hypothesis tests, and explore correlation and regression with real datasets.
Concepts: statistics, descriptive statistics, hypothesis testing
Published interactive lab
Algebra Visualizer – Equations, Functions & Inequalities
Visualize algebra concepts: solve linear and quadratic equations, graph functions, and explore inequalities with an interactive algebra tool designed for students at every level.
Concepts: algebra, linear equations, quadratic equations
Published interactive lab
UPSC CSAT Statistics — Distributions & Data Sets
Practice UPSC CSAT statistics and data interpretation with interactive problems on mean, median, mode, variance, and probability distributions drawn from real data sets.
Concepts: mean, median, mode
General-science observation
Use real published physics, chemistry, and ecology labs to inspect systems and relationships visually.
Published interactive lab
Projectile Motion Simulator — Interactive Physics Lab
Launch a projectile with adjustable angle, speed, gravity, mass, and air resistance. Compare planets, target a landing point, and read live range and height data.
Concepts: projectile motion, parabolic trajectory, air resistance
Published interactive lab
Circuit Lab — Interactive Schematic & DC Simulator
Build and simulate DC circuits online with this free circuit lab. Place resistors, capacitors, LEDs, voltage sources, and more, then run nodal analysis to see voltage, current, and power.
Concepts: Ohm's law, nodal analysis, Kirchhoff's laws
Published interactive lab
Interactive Periodic Table – Element Properties Online
Explore all 118 elements with periodic trends, electron configurations, and atomic data in this free interactive online periodic table for chemistry learners.
Concepts: periodic trends, electron configuration, ionization energy
Published interactive lab
Ecosystem Balance: Trophic Cascades & Stability
Discover how removing or adding a species tips an ecosystem in this free interactive ecosystem balance simulation — explore trophic cascades and keystone species.
Concepts: trophic cascade, keystone species, ecosystem stability