Homeostasis, Kidneys and Excretion — Interactive Lesson (Ages 14–16)

Whether it's a hot afternoon in Kano or a cold morning in London, the body keeps its inside conditions steady. This 21-slide interactive lesson on homeostasis takes pupils from first ideas to exam-style explanations, with 13 self-marking activities and nothing to prepare beforehand.

Teaching Homeostasis, Kidneys and Excretion in GCSE Biology

Pupils define homeostasis and negative feedback and explain how the brain controls body temperature through sweating, vasodilation, shivering and vasoconstriction. They name the excretory organs and the wastes they remove, explain that urea is made in the liver, and describe how the kidneys filter blood, reabsorb glucose and water, and how kidney failure is treated.

What Pupils Will Learn

• Define homeostasis and name conditions the body controls.
• Describe the parts of a control system and negative feedback.
• Explain how the body controls its temperature.
• Name the waste products the body excretes and where they come from.
• Describe how the kidneys produce urine, and treatments for kidney failure.

What’s Included

• 21-slide interactive lesson on homeostasis
• 13 self-marking activities: multiple-choice questions, true-or-false checks, sorting tasks, drag-and-drop categorising and fill-in-the-gap questions
• Step-by-step teaching cards that reveal one point at a time
• A written explanation task with a model answer for self-assessment

Why Teachers Love It

• No prep — open it on an interactive whiteboard, laptop or tablet
• Instant feedback explains every answer, right or wrong
• Everyday examples make biology feel real
• Works for whole-class teaching, independent study or revision

Curriculum Alignment

Supports UK GCSE Biology and Combined Science (AQA, Edexcel and OCR) and the Nigerian Senior Secondary Biology curriculum (SS2), including WAEC and NECO exam preparation.

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FAQ

What year groups is this for? Years 10–11 (ages 14–16), and SS2 in Nigeria.

Is it self-marking? Yes — all 13 activities give instant feedback.

Do pupils need to log in? No. The lesson runs in any modern web browser.

Can I use it for revision? Yes. Pupils can replay it as often as they like, and the results screen shows which questions to review before a test.