Turn ordinary milk into a moldable bioplastic using simple kitchen chemistry, a perfect, tactile introduction to how polymers work.
Yeast and hydrogen peroxide collide to create a dramatic foamy eruption, a crowd-pleasing way to demonstrate catalytic reactions.
A plastic bottle, balloon, and straw come together to build a working model of how lungs breathe, science that connects directly to the human body.
Soap films always find the most efficient shape, a beautiful, visual demonstration of surface tension that doubles as a geometry lesson.
Compare how plants and bare soil respond to rainfall. Students see firsthand why roots matter for our land, rivers, and ecosystems.
A battery, wire, and magnet come together to build a spinning motor, a hands-on look at electromagnetism that students can take home.
Free video lessons and exercises covering biology, chemistry, physics, and more, aligned to school curricula at every grade level.
Dramatic, memorable classroom demonstrations paired with clear science explanations. Perfect when you want engagement first and theory second.
Space-themed activities, engineering challenges, and lesson plans straight from NASA's education team, all free, all classroom-ready.
Over 1,400 free science fair project ideas across every grade level, each with full materials lists, step-by-step instructions, and curriculum alignment.
Bite-sized experiments from San Francisco's world-famous science museum, each using cheap, easy-to-find materials with big classroom impact.
Activity guides tied to PBS Kids shows, ideal for the youngest learners, ages 3 to 8, with minimal prep and maximum fun.
Hundreds of word problems sorted by grade level, students read, reason, and solve in a clean, distraction-free layout.
A fantasy RPG where every battle is solved with a math problem. Adaptive difficulty means it meets each student exactly where they are.
Structured practice from counting to calculus, mastery-based progression with detailed explanations. The gold standard for free math learning.
Rich mathematical problems and investigations from Cambridge University that encourage deep thinking, not just fast calculation.
Strategy and logic games that build mathematical thinking, students won't even realize they're practicing multiplication and problem-solving.
Logic puzzles, riddles, and brain teasers alongside concept explainers. Great for early finishers or home enrichment.
Before anything, before the setup, before the demo, ask them to guess. The moment a student makes a prediction, they're invested. They need to know if they were right.
Something went sideways? Amazing. Ask the room, why did that happen? That curiosity in the chaos? That's real science happening right there.
Bridges, sneakers, fizzy drinks, thunderstorms, it's all science. Once students see it around them, they can't unsee it. That's the whole goal.
Before anything, before the setup, before the demo, ask them to guess. The moment a student makes a prediction, they're invested. They need to know if they were right.
