Packets and routing

Follow a message as it is split into packets, routed hop by hop across the internet and put back together at the other end.

⏱ 18 min❓ 8 questions

What you'll be able to do

✔I can explain why data is split into packets
✔I can describe what a packet header contains and what routers do with it
✔I can put the steps of sending data across the internet in order

How this works

1Read the short explanations first — they teach you what you need before each question.
2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.

What's inside

8 questions and 1 quick teaching card, including:

↕️Put in order — Use the up and down arrows to sort the steps.
🔢Number answer — Work out the answer and type the number.

👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.

Curriculum: AC9TDI8K02