Welcome to the Lab
Free Chemistry and Physics Lessons and Labs
Hi, I’m Nick Zorn, a high school chemistry teacher with a degree in physics and a background in instructional technology. Here you’ll find my lessons, videos, and classroom strategies, free for students, parents, and teachers.
Jump to: Chemistry AP Chemistry Physics Quantitative Skills
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For Students
Chemistry and Physics · Tutor
ZornScience Tutor
Stuck on a problem? Type it, snap a photo of your work, or just talk. Your tutor asks the right questions so you figure it out yourself, checks your answers, and points you to the lessons that help.
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9 units, including Honors
9 units, by CED topic
9 units, including Honors
The math every science uses
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Free, no login, and nothing you enter leaves your device. See all practice activities →
Chemistry · Reference
Interactive Periodic Table
All 118 elements in one place. Tap any element, or color the table by atomic radius, electronegativity, or ionization energy.
AP Chemistry · Gases
Gas Laws and KMT Lab
Move a piston, heat the gas, and add particles, then graph the gas laws and see when real gases stop acting ideal.
Chemistry · Kinetics
Kinetics and Collision Theory Sandbox
Change the temperature, concentration, and activation energy, add a catalyst, and see why only some collisions react.
Physics · 2D Dynamics
Projectile Motion Vector Lab
Fire a cannon and watch the vertical velocity shrink, flip, and grow while the horizontal velocity stays the same.
Physics · Electric Circuits
Circuit Builder
Build circuits from batteries, resistors, switches, and bulbs, then probe them with a multimeter.
Test Prep · ACT
ACT Practice
Original ACT-style questions with test-day tools, then an estimated score and tips for the skills you missed.
Featured Lessons
Chemistry · Ionic Bonding
Predicting Charge
Count valence electrons, pick the shorter path to 8, and predict the charge of any main-group ion.
AP Chemistry · Unit 3
3.4 Ideal Gas Law
One equation, four variables. PV = nRT, the classic gas laws, partial pressures, and five fully worked examples.
Physics · 2D Dynamics
Angled Projectiles
Split the launch velocity into components, then find hang time, maximum height, and range. Four worked examples and a practice worksheet.
Quantitative Skills · Numbers
Scientific Notation
Write huge and tiny numbers the way scientists do, then convert them back. Includes self-check practice problems.
For Teachers
Everything here is free to use. Take it, adapt it, and use it in your own room.
Chemistry and Physics
Virtual Labs
Browser simulations for titration, kinetics, gas laws, circuits, projectiles, and more. No equipment needed.
Chemistry · Hands-on
Physical Labs
Real-equipment labs with a video of the lab, materials, NGSS alignment, and student and teacher PDFs. Start with Flame Test Forensics.
Routines
Classroom Strategies
Next-Day Notes, my Cornell notes routine built around a 2-minute summary and class-made questions, plus the brain breaks I use.
Using activities for a grade? Many end with a completion code students paste into Google Classroom.
For Parents
You don’t need to know chemistry to help. Here is where to point your student.
- Stuck on homework? The ZornScience Tutor guides your student with questions instead of handing over answers, in English or Spanish.
- Missed a class? Each lesson page has the notes, worked examples, and practice, plus a video when one is ready.
- Getting ready for the ACT? Free ACT practice sets end with an estimated score and tips.
New on ZornScience
Featured Video
Flame Test Forensics
Watch the flame test lab, then grab the student and teacher versions on the lab page.
Everything on ZornScience is free. If it saved you some time, you can buy me a coffee. Always appreciated, never expected.