KS3 Biology · Years 7 to 9

Body systems & health

How the body is built and kept running: the skeleton and its joints, muscles working in antagonistic pairs, organs and organ systems, the lungs and breathing, the heart, blood vessels and blood, and what drugs, smoking and alcohol do to your health.

6 topics
15 min of notes
6 homework sheets
Test paper

The topics, in order

Each has its revision notes, key words, a common misconception and quick questions; the homework sheets are free to print.

Test the whole unit

When the topics are revised, one paper covers them all, marked the way an exam would be.

Test paper

KS3 Body systems & health Test Paper with Mark Scheme

A 40-mark KS3 biology test paper on body systems and health for Years 7 to 9: 22 questions in 40 minutes, with a joint, the arm, the lungs and the heart to label, a pulse-rate table and units of alcohol. Plain-English mark scheme included.

40 marks, 22 questions
40 minutes
Mark scheme included, 13 pages

Buy the paper, £1.99 Printable A4 PDF, yours to keep

Did you know?

An adult skeleton has 206 bones. A newborn baby has around 270 to 300, and some of them join together as it grows.
The smallest bone in your body is the stirrup bone in your ear, about 3 mm long.
Your heart beats about 100,000 times a day, and never once takes a day off.
Hiccups are sudden jerks of your diaphragm.

The Cartana chart: an island for each KS3 topic, from cells to the heart

Watch the trailer · 1:06

New from Cartana · Beta test 1–31 December

Revision that feels like an adventure

Cartana is our KS3 learning adventure: sail between islands, answer quick-fire questions and battle bosses. It starts with science, with maths on the way, and launches in 2027. This December a small group of testers gets to play it first.

In the Cartana adventure, body systems & health is the island Cardia.

Play the game before its official release
Help us build it with your feedback
Earn exclusive in-game items in return