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Love padlocks on the Butchers' Bridge in Ljubljana, Slovenia.
Photo: Petar Milošević, CC BY-SA 4.0, via Wikimedia Commons

Click, Code & Stay Safe Online

This internet safety quiz for kids mixes computer basics with smart online habits, from what a CPU does to dealing with scam pop-ups. 15 questions for Classes 5 to 8, with simple explanations.

15 questionsMedium~3 minNo timer

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About this Internet Safety Quiz for Kids quiz

This internet safety quiz for kids is written for students in Classes 5 to 8. Its 15 questions mix computer basics, such as the parts inside a computer and how it stores information, with the online safety habits every young internet user needs: strong passwords, extra login checks, scam messages and pop-ups, dealing with bullies and keeping personal details private.

A few questions also look back at the history of computing, from Charles Babbage's machines of gears to the first website, and at the tools kids use to start coding. Every answer comes with a short, simple explanation, so students learn something even when they guess wrong.

Teachers can use it for computer class, Safer Internet Day or a cyber safety week, and parents can play it with children at home. Read the questions aloud and let the class vote, or play on a phone or a shared screen. It is free and needs no sign-up.

Internet Safety Quiz for Kids questions with answers

Show answers

  1. People call it the brain of the computer. What does CPU stand for?

    A square black computer chip with rows of tiny metal pins mounted on a green circuit board.
    Photo: Mister rf, CC BY-SA 4.0, via Wikimedia Commons
    • Computer Personal Unit
    • Central Processing Unit
    • Central Program Utility
    • Control Power Unit

    Answer: Central Processing Unit. The CPU carries out the instructions of every program you run, billions of times a second.

  2. Which extra step keeps your account safe even if someone learns your password?

    Schoolchildren in blue uniforms using small green-and-white laptops at wooden desks while a man helps one of them.
    Photo: cellanr, CC BY-SA 2.0, via Wikimedia Commons
    • Using incognito mode
    • Clearing your browser history
    • A longer username
    • Two-factor authentication

    Answer: Two-factor authentication. Two-factor authentication asks for a second proof, such as a code on your phone, so a password alone is not enough.

  3. A safe shopping site's address starts with "https". What does that last "s" stand for?

    • Server
    • System
    • Secure
    • Speed

    Answer: Secure. HTTPS is HyperText Transfer Protocol Secure: the connection between you and the site is scrambled so others can't read it.

  4. Why is it a bad idea to use the same password for your games, email and school account?

    • It makes logging in slower
    • If one leaks, all of them can be opened
    • Websites don't allow it
    • It uses up more memory

    Answer: If one leaks, all of them can be opened. Hackers try leaked passwords on lots of other sites. A different password for each account keeps the damage to one place.

  5. Harmful software that sneaks in disguised as a useful program is named after what?

    • The Great Wall
    • Ali Baba's cave
    • Pandora's box
    • The Trojan horse

    Answer: The Trojan horse. Like the wooden horse that hid Greek soldiers, a Trojan hides harmful code inside something that looks useful.

  6. Computers store every photo, song and game as long strings of just two digits. Which two?

    • 1 and 2
    • 0 and 1
    • 0 and 9
    • 1 and 10

    Answer: 0 and 1. This is binary. A 1 means a tiny switch is on and a 0 means it is off, and each digit is called a bit.

  7. Charles Babbage designed a machine like this in the 1800s, made of gears instead of chips. What was it built to do?

    A large brass-and-steel mechanical calculating machine with rows of gears and columns, standing on a wooden platform in a museum.
    Photo: Jitze Couperus from Los Altos Hills, California, USA, CC BY 2.0, via Wikimedia Commons
    • Weave patterned cloth
    • Send telegraph messages
    • Play music on its own
    • Work out and print maths tables

    Answer: Work out and print maths tables. Printed tables of numbers for sailors and engineers were full of human mistakes. Babbage's Difference Engine was meant to calculate them and print them without errors.

  8. A pop-up shouts "You've won a free phone! Click here to claim it." What should you do?

    • Close it without clicking and tell an adult
    • Click fast before it disappears
    • Type your address to get the prize
    • Share it with your friends

    Answer: Close it without clicking and tell an adult. Real prizes don't appear out of nowhere. Scammers use excitement to make you click quickly.

  9. What happens to whatever is stored in a computer's RAM when you switch the computer off?

    Two long green memory circuit boards, each lined with black chips and gold contacts along the bottom edge.
    Photo: Mister rf, CC BY-SA 4.0, via Wikimedia Commons
    • It is erased
    • It is saved permanently
    • It moves to the hard disk by itself
    • It goes up to the cloud

    Answer: It is erased. RAM is short-term memory that needs power to hold anything. That is why you save your work to storage before shutting down.

  10. The world's first website went live at CERN in 1991, and a copy can still be visited today. What was it about?

    • Football scores
    • A cake recipe
    • The weather in Geneva
    • The World Wide Web itself

    Answer: The World Wide Web itself. Tim Berners-Lee's first page explained what the web was and how to make your own pages.

  11. Someone keeps sending you mean messages in a game chat. What is the best thing to do?

    • Block them, save screenshots and tell a trusted adult
    • Send mean messages back
    • Keep it a secret
    • Give them your password to make peace

    Answer: Block them, save screenshots and tell a trusted adult. Blocking stops the messages, screenshots are proof, and a parent or teacher can help you report it. You never have to handle bullying alone.

  12. A friendly stranger in an online game asks you a few questions. Which of these is OK to share?

    • Your home address
    • Your school's name
    • Your favourite cartoon
    • Your phone number

    Answer: Your favourite cartoon. Your address, school and phone number can help a stranger find you in real life. Talk about games and cartoons, not about where you are.

  13. Which kind of program checks your computer for viruses and removes them?

    • Antivirus software
    • A web browser
    • A spreadsheet
    • A screen saver

    Answer: Antivirus software. Antivirus software scans files for known harmful code. Keep it updated, because new viruses appear every day.

  14. Scratch, where kids code games by snapping together colourful blocks, was made at which university?

    • Oxford
    • MIT
    • IIT Bombay
    • Stanford

    Answer: MIT. Scratch came from the Lifelong Kindergarten group at the MIT Media Lab and launched in 2007. Its mascot is an orange cat.

  15. Websites save small text files on your device to remember things like your language or your login. What are these files called?

    • Bookmarks
    • Pixels
    • Cookies
    • Tokens

    Answer: Cookies. Cookies let a site recognise you next time. Some also track what you do online, which is why sites ask before saving them.

Frequently asked questions

What is cyberbullying?

Cyberbullying is bullying through phones, games, apps or social media: repeated behaviour meant to scare, anger or shame someone. Children who face it should never keep it to themselves and should tell a parent, teacher or another adult they trust.

How old do you have to be to use social media?

Most big platforms, including YouTube (for your own account) and Snapchat, set 13 as the minimum age, mainly because of a US children's privacy law. In India, the DPDP Act treats everyone under 18 as a child whose data needs a parent's consent.

Which classes is this internet safety quiz for?

It is pitched at Classes 5 to 8, roughly ages 10 to 14. Younger children can play with an adult, and older students can use it as a quick revision round.