Everything you need to teach the human digestive system at KS3 — two complete resources, full answer keys, and no preparation required. This lesson pack covers organ order and function, peristalsis, villi, the roles of the liver and pancreas, and the processing of undigested food, for students aged 11-14. Google Classroom ready.

Digestion is the process of breaking food into nutrients small enough to be absorbed into the blood. The resources in this pack develop student understanding from core knowledge recall through to applied analysis and creative communication — suitable for mixed-ability classes or as a full homework sequence.

The main worksheet contains 19 questions worth 100 marks across three progressive sections: Section 1 covers organ order, peristalsis, villi, and core vocabulary through multiple choice, true or false, and fill-in-the-blank questions (30 marks); Section 2 tests understanding of organ adaptations, the roles of the pancreas, liver, and bile, and key definitions through short answers, organ function table completion, and definition writing (40 marks); and Section 3 challenges students with extended writing — describing the complete journey of a meal, evaluating a misconception about the stomach, and explaining the role of fibre (30 marks).
The extension pack provides four enrichment activities — a 12-term vocabulary matching exercise; a 27-mark challenge quiz with data analysis on transit times; a 16-mark gallbladder removal case study; and a creative Teach It Back task assessed with a five-band rubric. Full answer keys and detailed marking guidance are included for everything.

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Last updated: — initial release

WHAT’S INCLUDED:

MAIN WORKSHEET:

19 questions, 100 marks total
Section 1: Knowledge Recall (30 marks) — multiple choice (x6), true or false table (x8), fill-in-the-blank paragraph (10 gaps)
Section 2: Application and Understanding (40 marks) — short-answer questions on mouth, oesophagus, stomach, and small intestine adaptations; eight-organ function table; definition writing; pancreas and liver roles
Section 3: Extension and Analysis (30 marks) — extended writing on the journey of a meal, evaluating the stomach misconception, and the role of fibre
Full answer key with detailed marking guidance

EXTENSION PACK:

Vocabulary Matching — 12 terms and definitions, answer grid (12 marks)
Challenge Quiz — 11 questions including data analysis task (27 marks)
Case Study — gallbladder removal and bile digestion (16 marks)
Teach It Back — creative writing task, five-band rubric assessed
Full answer keys and marking guidance for all activities

TAGS:
KS3
Biology
digestive system
digestion
KS3 Biology
lesson pack
bundle
complete resource
Year 8
organs
peristalsis
villi
bile
KS3 Science
homework

PRICE:
£5

KEY STAGE:
KS3

SUBJECT:
Biology