Free practice tests
69 free practice tests and quizzes. Each one is a deck of quick 3-choice cards with the answer explained and the sources it was checked against. The first 50 cards of every test are free, no sign-up needed; members get every card and timed practice exams.
Everyday Life
- Free US Citizenship Test Practice (2025 Civics Test)
Practice the 2025 USCIS civics test, one card at a time, with the why behind every answer.
Stuff Every US Citizen Should Know · 120 cards - Free Air Travel Quiz: Passports, Security, Money
Air travel, passports, security, health and money abroad.
Stuff Every Traveler Should Know · 84 cards - Free World Travel Quiz: Visas, Customs, Etiquette
Visas, customs, etiquette, tipping, plugs, driving and staying safe in other countries.
Stuff Every World Traveler Should Know · 103 cards
Home & Money
- Free Dad Skills Quiz: Car, Home, Grill, First Aid
Practical skills every dad (and anyone) should know: car, home, grill, first aid, money and kids.
Stuff Every Dad Should Know · 103 cards - Free Home Solar Quiz
Home solar and batteries: how they work, sizing, safety, incentives and maintenance.
Stuff Every Solar Owner Should Know · 87 cards - Free Homeowner Quiz: Maintenance, Safety, Repairs
Owning and fixing a home: maintenance, safety, energy, money and repairs.
Stuff Every Homeowner Should Know · 119 cards - Free Money Quiz for Teens
Money basics for teens: earning, saving, banking, credit, taxes and avoiding scams.
Stuff Every Teen Should Know About Money · 106 cards
Outdoors & Nature
- Free Boater Safety Test Practice (Boating License)
The boating safety basics behind state boater education courses and the USCG navigation rules.
Stuff Every Boater Should Know · 204 cards - Free Hunter Safety Practice Test
Firearm safety, ethics and game ID from hunter education, in quick practice cards.
Stuff Every Hunter Should Know · 161 cards - Survival Skills Quiz: First Aid, Knots, Navigation
First aid, knots, navigation, fire, shelter and water: the outdoor skills a Scout learns from Tenderfoot to Eagle.
Stuff Every Survivalist Should Know · 175 cards - Free Astronomy Quiz
Light, telescopes, stars, galaxies, the solar system and the sky: how astronomers know what they know.
Stuff Every Astronomer Should Know · 165 cards - Free Fishing Quiz: Licenses, Knots, Gear and Safety
Fishing, crabbing and clamming basics: licenses, rules, knots, gear and safety.
Stuff Every Angler Should Know · 100 cards
Vehicles & Flying
- Free FAA Private Pilot Written Test Practice
Study for the FAA private pilot knowledge test: regulations, weather, airspace and aerodynamics in 30 seconds a card.
Stuff Every Private Pilot Should Know · 324 cards - Free FAA Part 107 Practice Test (Drone License)
Get ready for the FAA Part 107 remote pilot test with short, sourced practice cards.
Stuff Every Drone Pilot Should Know · 200 cards - Free Driver's Permit Practice Test
Road signs, right-of-way and safe driving: the questions on every state's permit test.
Stuff Every Driver Should Know · 113 cards - Free FAA Instrument Rating Written Test Practice (IRA)
Study for the FAA Instrument Rating Airplane (IRA) knowledge test.
Stuff Every Instrument Pilot Should Know · 95 cards - Free FAA Commercial Pilot Written Test Practice (CAX)
Study for the FAA Commercial Pilot Airplane (CAX) knowledge test.
Stuff Every Commercial Pilot Should Know · 98 cards - Free FAA Sport Pilot Written Test Practice
Study for the FAA Sport Pilot knowledge test, plus ultralight (Part 103) basics.
Stuff Every Sport Pilot Should Know · 99 cards - Free CDL Practice Test: General Knowledge, Air Brakes, Hazmat
CDL permit prep: General Knowledge, Air Brakes and the Hazmat endorsement, from the state CDL manual.
Stuff Every CDL Driver Should Know · 124 cards
Radio & Electronics
- Free Ham Radio Technician Practice Exam
Learn the FCC Technician question pool (2026 to 2030) one card at a time.
Stuff Every Ham Radio Operator Should Know · 341 cards - Free Ham Radio General Class Practice Exam
Study the FCC General class question pool one card at a time.
Stuff Every General Class Ham Should Know · 100 cards - Free Ham Radio Amateur Extra Practice Exam
Study the FCC Amateur Extra question pool one card at a time.
Stuff Every Extra Class Ham Should Know · 92 cards - Free Engineering Fundamentals Quiz
Units, forces, materials, circuits, fluids, heat and design: the core ideas every engineer works with.
Stuff Every Engineer Should Know · 165 cards
Tech, AI & Security
- Free CompTIA A+ Practice Test (Core 1 and Core 2)
Study for the CompTIA A+ Core 1 and Core 2 exams: hardware, networking, Windows, security and troubleshooting.
Stuff Every IT Tech Should Know · 100 cards - Free CompTIA Security+ Practice Test
Study for the CompTIA Security+ exam: threats, architecture, operations and governance.
Stuff Every Security Pro Should Know · 100 cards - Free Technology Quiz: Computers, Networks, Security
How computers, networks, the internet, software and security really work, one card at a time.
Stuff Every Technology Expert Should Know · 149 cards - Free AI and Machine Learning Quiz
Machine learning, neural networks, large language models, training, evaluation and AI safety, explained.
Stuff Every AI Expert Should Know · 168 cards
Work, Trades & Compliance
- Free Journeyman Electrician Practice Test
Journeyman electrician exam prep: theory, safety and National Electrical Code concepts.
Stuff Every Electrician Should Know · 99 cards - Free EPA 608 Practice Test (HVAC Certification)
EPA Section 608 refrigerant certification prep: Core, Type I, II and III.
Stuff Every HVAC Tech Should Know · 102 cards - Free Welding Quiz: Processes, Safety, Metals
Welding and metal fabrication basics: processes, safety, metals and joints.
Stuff Every Welder Should Know · 99 cards - Free Woodworking Quiz: Tools, Joinery, Shop Safety
Woodworking basics and shop safety: tools, wood, joinery and finishing.
Stuff Every Woodworker Should Know · 65 cards - Free HIPAA Training Quiz for Healthcare Workers
HIPAA training prep: the Privacy, Security and Breach Notification Rules, and what to do on the job.
Stuff Every Healthcare Worker Should Know · 110 cards - Free OSHA 10 Practice Test
OSHA 10-Hour prep: worker rights, the Focus Four hazards, HazCom, PPE and everyday job safety.
Stuff Every Worker Should Know · 123 cards - Free Starting a Business Quiz: LLC, EIN, Sales Tax
Setting up a US business: LLC or S corp, EIN, registration, licenses, sales tax, bank account, insurance and contracts.
Stuff Every New Business Owner Should Know · 109 cards - Free Startup Founder Quiz
Running and growing a US company: cash flow, pricing, hiring, IP, fundraising, equity, privacy rules and SBA loans.
Stuff Every Founder Should Know · 104 cards - Free ASVAB Practice Test
Practice for the ASVAB, the military entrance test, across all of its subtests. Avery's idea.
Stuff Every Military Recruit Should Know · 124 cards
Sports & Fitness
- Free Ski and Snowboard Safety Quiz
Ski and snowboard safety, mountain weather, cold injuries and slope etiquette.
Stuff Every Skier Should Know · 87 cards - Free Running Quiz: Training, Form, Race Day
Training, form, shoes, heat and hydration, injuries and race day, from your first 5K to a marathon.
Stuff Every Runner Should Know · 61 cards - Free Swimming and Water Safety Quiz
Water safety, the four strokes, pool and open water rules, and training tips.
Stuff Every Swimmer Should Know · 61 cards - Free Bike Safety and Cycling Quiz
Road rules, helmets, hand signals, bike care, flats and riding skills.
Stuff Every Cyclist Should Know · 64 cards - Free Golf Rules Quiz
Rules of Golf, scoring, etiquette, clubs and staying safe on the course.
Stuff Every Golfer Should Know · 62 cards - Free Tennis Rules Quiz
Scoring, rules, line calls, etiquette, strokes and avoiding tennis elbow.
Stuff Every Tennis Player Should Know · 65 cards - Free Pickleball Rules Quiz
The kitchen, the two-bounce rule, scoring, etiquette and staying injury free.
Stuff Every Pickleball Player Should Know · 60 cards - Free Soccer Rules Quiz
Offside, fouls and cards, restarts, positions, heading and safety, and the World Cup.
Stuff Every Soccer Player Should Know · 58 cards - Free Basketball Rules Quiz
Traveling, double dribble, fouls, the shot clock, positions and a little history.
Stuff Every Basketball Player Should Know · 63 cards - Free Baseball Rules Quiz
Strikes and balls, outs, the infield fly rule, positions, scorekeeping and safety.
Stuff Every Baseball Player Should Know · 66 cards - Free Weightlifting Quiz: Form, Spotting, Recovery
Form, spotting, sets and reps, progressive overload, recovery, and gym etiquette.
Stuff Every Lifter Should Know · 59 cards - Free Rock Climbing Safety Quiz
Belay commands, knots, gear checks, grades, bouldering and outdoor climbing safety.
Stuff Every Climber Should Know · 60 cards - Free Scuba Diving Safety Quiz
Never hold your breath, equalizing, depth and air, safety stops, gear and hand signals.
Stuff Every Scuba Diver Should Know · 63 cards - Free Volleyball Rules Quiz
Rotations, scoring, the libero, net rules, beach vs indoor, and avoiding injuries.
Stuff Every Volleyball Player Should Know · 61 cards - Free Hiking Safety Quiz
The Ten Essentials, trail etiquette, water, weather, wildlife and getting found if you get lost.
Stuff Every Hiker Should Know · 61 cards
Pets & Animals
- Free Dog Care Quiz
Dog care basics: health, food, safety, training and what's toxic.
Stuff Every Dog Owner Should Know · 110 cards - Free Cat Care Quiz
Cat care basics: health, food, litter box, behavior and what's toxic.
Stuff Every Cat Owner Should Know · 155 cards - Free Horse Care Quiz
Horse care basics: health, feeding, hooves, safety and barn know-how.
Stuff Every Horse Owner Should Know · 143 cards - Free Small Pet Care Quiz: Rabbits, Guinea Pigs, Hamsters
Rabbits, guinea pigs, hamsters, gerbils, rats and ferrets: lifespan, cost, space, handling and vet care.
Stuff Every Small Pet Owner Should Know · 101 cards - Free Aquarium and Fish Care Quiz
Freshwater aquariums: the nitrogen cycle, tank size, water testing, goldfish myths and betta care.
Stuff Every Fish Owner Should Know · 115 cards - Free Backyard Chicken Quiz
Backyard chickens: coop, feed, eggs, predators, local rules and staying healthy (salmonella).
Stuff Every Backyard Chicken Owner Should Know · 102 cards - Free Reptile Care Quiz
Reptile care basics: lifespan, cost, heat and UVB, handling, salmonella safety, laws and vet care.
Stuff Every Reptile Owner Should Know · 93 cards - Free Pet Bird Care Quiz
Pet bird basics: lifespan, cost, noise, diet, safety, vet care and what owning a bird takes.
Stuff Every Bird Owner Should Know · 101 cards
Languages
- Free Spanish Travel Phrases Quiz
Useful Spanish phrases for travel, one card at a time.
Stuff Every Traveler Should Say in Spanish · 40 cards - Free German Travel Phrases Quiz
Useful German phrases for travel, one card at a time.
Stuff Every Traveler Should Say in German · 49 cards - Free Japanese Travel Phrases Quiz
Useful Japanese phrases for travel, one card at a time.
Stuff Every Traveler Should Say in Japanese · 50 cards - Free Portuguese Travel Phrases Quiz
Useful Portuguese phrases for travel, one card at a time.
Stuff Every Traveler Should Say in Portuguese · 50 cards - Free Russian Travel Phrases Quiz
Useful Russian phrases for travel, one card at a time.
Stuff Every Traveler Should Say in Russian · 49 cards - Free French Travel Phrases Quiz
Useful French phrases for travel, one card at a time.
Stuff Every Traveler Should Say in French · 51 cards - Free Swahili Travel Phrases Quiz
Useful Swahili phrases for Kenya, Tanzania and East Africa, one card at a time.
Stuff Every Traveler Should Say in Swahili · 56 cards - Free Mandarin Chinese Travel Phrases Quiz
Useful Mandarin Chinese phrases for travel, one card at a time.
Stuff Every Traveler Should Say in Chinese · 55 cards
Kids & Youth
- Free CAP Cadet Practice: Learn to Lead and Drill
CAP cadet leadership, drill, the Cadet Oath and Core Values: help for achievement tests and milestone exams.
Stuff Every CAP Cadet Should Know · 553 cards - Free CAP Aerospace Dimensions Practice Questions
CAP aerospace education: flight, weather, rockets, space and cyber safety, for achievement tests and the Mitchell exam.
Stuff Every CAP Aerospace Cadet Should Know · 495 cards
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