Balanced Diet - KS3 Biology Worksheet

A complete, no-prep 100-mark worksheet on balanced diet 📘 - ready to use for lessons, homework, or revision with KS3 Biology students aged 11-14.

Balanced diet is the idea that the body needs the right amount of each food group - carbohydrates, protein, fats, vitamins, minerals, fibre and water - to stay healthy.

Structured across three sections of progressive difficulty: Section 1 (30 marks) covers the seven food groups through multiple-choice questions, a true/false table and a fill-in-the-blank exercise. Section 2 (40 marks) builds understanding through short-answer questions on fats, carbohydrates and fibre, a nutrient-matching exercise, and key definitions. Section 3 (30 marks) challenges students with extended writing comparing dietary needs, a real-world case study, and an explanation of the Eatwell Guide. A full answer key with detailed marking guidance is included. Watch the full lesson on YouTube: https://youtu.be/m2iIS9R9cWE

Also available: a companion extension pack with four enrichment activities, or save £1 with the complete lesson bundle.

TAGS: ks3, key stage 3, biology, ks3 biology, balanced diet, food groups, nutrition, worksheet, assessment, science revision, homework, ks3 science, diet and exercise, exam preparation

PRICE: £3

KEY STAGE: KS3

SUBJECT: Biology