Reversible Reactions and the Haber Process — Interactive Lesson (Ages 14–16)

Some reactions can go backwards. Show pupils how chemists control them to make ammonia for fertilisers. This 22-slide interactive lesson on Haber process takes pupils from first ideas to exam-style explanations, with 13 self-marking activities and nothing to prepare beforehand.

Teaching Reversible Reactions and the Haber Process in GCSE Chemistry

Pupils describe reversible reactions, including hydrated copper sulfate, and the energy changes in each direction, then explain dynamic equilibrium in a closed system. They predict how temperature, pressure and concentration change the yield, explain why a catalyst does not, and justify the Haber process conditions of about 450 °C, 200 atmospheres and an iron catalyst as compromises between yield, rate, cost and safety.

What Pupils Will Learn

• ⇌ Describe reversible reactions and the ⇌ symbol.
• Explain the energy changes in a reversible reaction.
• Describe dynamic equilibrium in a closed system.
• Predict how changing conditions affects the position of equilibrium.
• Explain the conditions chosen for the Haber process.

What’s Included

• 22-slide interactive lesson
• 13 self-marking activities: multiple-choice questions, true-or-false checks, sorting tasks 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 chemistry feel real
• Works for whole-class teaching, independent study or revision

Curriculum Alignment

Supports UK GCSE Chemistry and Combined Science (AQA, Edexcel and OCR) and the Nigerian Senior Secondary Chemistry curriculum (SS2–SS3), including WAEC and NECO exam preparation.

Love this? You’ll love…

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FAQ

What year groups is this for? Years 10–11 (ages 14–16), and SS2–SS3 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.