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Free IQ Quiz for Kids Ages 6–14

Discover your child's thinking strengths with a fun 20-question brain quiz — instant IQ-style score, clear explanations after every answer, and printable certificate. Made for ages 6–14, completely free, no sign-up needed. 🎉

🎂 Ages 6–14 ⚡ Instant results 🔒 No data collected 🆓 100% free, no sign-up
🎲
1,221
Question Bank
❓
20
Questions
⏱
30s
Per Q
🏆
IQ
Score
🎂 Your age:

👇 Tap a card to start playing!

🧠
Smart IQ Quiz
Logic, maths, science, riddles & more!
1,221 questions
🌍
World Capitals
Can you name every capital city on Earth?
174 questions
🔷
Non-Verbal Reasoning
Shapes, patterns & sequences for Yr 4 & Yr 5
55 questions
📘
Technical English
Tricky words & double meanings from our adventure story books!
269 questions
📚
Verbal Reasoning
Synonyms, analogies, hidden words & more — 1 minute per question!
330 questions
✖️
Practice Times Table
Pick the right answer! Tables 1–12, 15 seconds per question.
How many questions?
➗
Practice Division
Pick the right answer! Facts from the 1–12 tables, 15 seconds per question.
How many questions?
🎮
Brain Games
Tic Tac Toe, 9×9 Sudoku, Word Find, Memory Match & Maths Blast!
5 games
Q 1 / 20
✅ Score: 0
30
🔢 Pattern

🎉
Brilliant!
0
/ 20 correct
IQ Score 100
🧠 Smart Brain Above Average
⭐ Average

📊 How You Did by Topic
Q 1 / 20
✖️ Times Tables
✅ 0
7 × 8 = ?
🎉
Practice Complete!
0 / 20

🚀 How It Works

1

Pick a Quiz & Age

Choose from IQ Quiz, World Capitals, Verbal Reasoning, NVR, or maths practice — then select the right age group for a fair challenge.

⏱ 10 seconds
2

Answer 20 Questions

Beat the timer on each question. Every answer — right or wrong — comes with a friendly explanation, so kids learn as they play.

⏱ about 10 minutes
3

Get Your Score

See an instant IQ-style score with a topic-by-topic breakdown, earn badges, and print a personalised certificate to celebrate.

⚡ instant

🧠 Why Brain Training Matters for Kids

Growing brains love a challenge

Between the ages of 6 and 14, a child's brain is at its most flexible — scientists call this neuroplasticity. Every time a child works through a tricky puzzle, spots a pattern, or reasons their way to an answer, the brain strengthens the connections used to do it. Regular, playful mental exercise builds concentration, working memory, and problem-solving stamina that carries straight into the classroom. Just 15–30 minutes of quiz practice a day can make thinking faster and learning easier.

What is verbal reasoning — and why practise it?

Verbal reasoning is the ability to understand and think with words: spotting synonyms and opposites, completing analogies, finding hidden words, solving letter sequences, and working out which word doesn't belong. It is a core part of the 11-plus and many grammar school entrance exams in the UK, and a strong predictor of reading comprehension and vocabulary growth. Our question bank now includes a dedicated set of 250 verbal reasoning questions — covering synonyms, antonyms, analogies, odd-one-out, letter series, hidden words, compound words, spelling, and word groups — so children can build these skills one fun question at a time.

Little and often beats cramming

Learning research consistently shows that short, regular practice sessions beat occasional marathon sessions. That is exactly how Smart Kid IQ is designed: each quiz is just 20 questions with a friendly 30-second timer, every answer comes with a clear explanation, and the session history lets children watch their own scores climb. Mix in our five brain games — Sudoku for logic, Maths Blast for number speed, Memory Match for working memory — and you have a complete daily brain workout that feels like play, not homework. Want the full science and study tips? Read our free Brain Training Guide.

❓ Frequently Asked Questions

What is Smart Kid IQ?
Smart Kid IQ is a free online brain-training platform built for children aged 6 to 14. At its heart is a question bank of 1,221 teacher-style questions spanning eleven topic areas — maths, science, logical reasoning, number patterns, riddles, verbal reasoning, spatial thinking, word play, memory, creative thinking, and general knowledge. Alongside the main IQ quiz there are dedicated modes for World Capitals geography, Non-Verbal Reasoning, Verbal Reasoning, and timed times-table and division practice. Five classic brain games — Tic Tac Toe, 9×9 Sudoku, Word Find, Memory Match, and Maths Blast — round out the collection. Every quiz question comes with a clear, child-friendly explanation, so children learn something from every answer rather than just being told right or wrong. The whole site runs in any web browser on a phone, tablet, or computer, with nothing to install and no account to create.

Is Smart Kid IQ free to use?
Yes — every part of Smart Kid IQ is completely free, and it always will be. There is no subscription, no premium tier, no locked content, no sign-up form, and nothing to download or install. You simply open smartkidiq.com in any web browser on a phone, tablet, laptop, or school computer and start playing within seconds. This matters because many children's quiz apps advertise themselves as free but hide the useful features behind a paywall after a few questions; Smart Kid IQ has no paywall anywhere. The site is supported by a small number of child-safe, non-personalised adverts, which is what allows us to keep all 1,221 questions, every quiz mode, and all five brain games open to everyone. Families and classrooms can use it as often as they like at no cost.

What age group is the quiz designed for?
Smart Kid IQ is designed for children aged 6 to 14, which covers the full primary and early secondary school range. Before starting the main quiz, you choose one of three age bands — 6–8, 9–11, or 12–14 — and the question mix is adjusted so the challenge is fair for that stage. Younger children receive more pattern-spotting and simple maths questions, while older children face multi-step problems, trickier vocabulary, and more abstract logic. There is also an 'Any Age' option for families who want to play together using the complete question bank. If a question feels too hard, the explanation shown after each answer teaches the idea so it is easier next time. A good approach is to start your child in the lower band and move them up once they regularly score above fifteen out of twenty.

How is the IQ score calculated?
At the end of each 20-question quiz, your result is converted into an estimated IQ-style score on a scale from 70 to 145. The calculation rewards accuracy first, with streak bonuses for consecutive correct answers. Your score then places you in one of seven fun achievement levels: Just Starting (70–79), Good Thinker (80–89), Smart Cookie (90–99), Sharp Mind (100–109), Super Brain (110–119), Mega Genius (120–134), and Ultimate Genius (135–145). It is important to understand that this is an educational, motivational score designed to make practice rewarding — it is not a certified clinical IQ assessment, which can only be administered by a qualified psychologist under controlled conditions. Because the score responds to practice, children can watch it climb over days and weeks, which is exactly the habit the site is designed to encourage. A printable certificate records each result.

What topics are covered in the IQ quiz?
The Smart IQ Quiz draws on eleven topic areas: Logical Reasoning, Number Patterns, Maths Problems, Science Facts, Riddles, Verbal Reasoning, Spatial Thinking, Word Play, Memory Challenges, Creative Thinking, and General Knowledge. Each 20-question session mixes several of these, so children exercise different thinking skills in one sitting, and the end-of-quiz report breaks the score down topic by topic so you can see strengths and gaps at a glance. Beyond the main quiz there are dedicated modes: World Capitals covers countries and capital cities around the globe; Non-Verbal Reasoning uses shapes, sequences and patterns similar to Year 4 and Year 5 school papers; Verbal Reasoning has 330 questions on synonyms, antonyms, analogies, hidden words and spelling; and the practice modes drill times tables and division facts from the 1–12 tables against a friendly 15-second timer.

What brain games are available?
Smart Kid IQ includes five free brain games, each chosen to train a different skill. Tic Tac Toe lets you challenge an unbeatable computer opponent or a friend, teaching forward planning. 9×9 Sudoku is the full classic puzzle with Easy, Medium and Hard levels, a timer and hints — brilliant for logical deduction. Word Find hides themed words in a 10×10 letter grid across four themes with five word sets each, building spelling and visual scanning. Memory Match asks you to flip cards and find all eight matching pairs, strengthening working memory and concentration. Maths Blast is a 60-second mental-arithmetic sprint with three difficulty levels that builds number fluency fast. Together they make a balanced brain gym: logic, memory, vocabulary, planning and speed. All five games run instantly in the browser with no downloads and no sign-up, just like the quizzes.

Is it safe for children? Is personal data collected?
Children's safety is the first design rule of Smart Kid IQ. The site does not collect, request, or store any personal data from children — no names, no email addresses, no locations, no photographs, and no account details, because there are no accounts at all. Quiz scores are kept only in your own browser's local storage and never leave your device. There are no chat rooms, no comments, no social features, and no user-generated content, so there is no way for strangers to contact a child through the site. The small number of adverts shown are served in Google's child-directed, non-personalised mode, meaning they are family-safe and do not track or profile the viewer, in line with COPPA and UK GDPR rules for children's services. You can read the full details in our Privacy Policy.

Can I use Smart Kid IQ in school or at home?
Absolutely — Smart Kid IQ works equally well at home and in the classroom. Teachers use the quizzes as morning warm-ups, wet-break activities, revision tools and mental-maths starters; because nothing needs installing and no accounts are needed, a whole class can be playing within a minute on school laptops or tablets. The Non-Verbal and Verbal Reasoning modes mirror the style of Year 4–5 reasoning papers and 11-plus practice, and the times-table and division modes support the maths curriculum directly. At home, a sensible routine is 15–30 minutes a day: one 20-question quiz followed by a brain game. The session history table shows recent scores so children can see their own progress, and the printable certificate is a lovely way to celebrate a personal best. For practical study techniques, our free Brain Training Guide is a good next read.

How can I improve my score?
Improvement comes from short, regular practice rather than occasional marathons. Aim for one or two 20-question quizzes a day and always read the explanation after each answer — including the ones you got right, because the explanations often teach a faster method. Rotate through the different modes, since each builds a different skill: the main IQ quiz for all-round thinking, Verbal Reasoning for vocabulary and word logic, Non-Verbal Reasoning for pattern recognition, and World Capitals for memory and geography. Add the brain games as a fun finisher — Sudoku strengthens logical deduction, Maths Blast sharpens number speed, and Memory Match trains working memory. Watch your topic-by-topic breakdown at the end of each quiz and spend extra time on your weakest category. Practised daily, these habits typically show up in a rising score within a few weeks.