Cracking Hydrocarbons — Interactive Lesson (Ages 14–16)

☆☆☆☆☆ Add your review • Year 10–11 • 🎓 Interactive Lesson & Activities

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Interactive lessons that mark answers and read aloud
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Lesson at a glance

What pupils will learn

Define cracking as a thermal decomposition reaction.
Describe catalytic cracking and steam cracking.
Explain why cracking is needed, using supply and demand data.
Balance equations for cracking reactions.
State the uses of the products of cracking.

Curriculum

UK: Year 10–11 Science, National Curriculum (England)
Topic area: Organic Chemistry
US equivalent: Grades 9–10 (year level only; not mapped to US standards)

What the lesson covers

What Is Cracking?
Two Ways to Crack
Why Crack? Supply and Demand
Balancing Cracking Equations
Products of Cracking

How it is interactive

6 multiple-choice questions
2 true or false questions
1 fill-in-the-blank question
1 sorting and ordering task
1 sentence-writing task
1 drag-the-words sentence
1 reveal card

Feedback and what you get

Questions are marked automatically as pupils answer: a sound and a character reaction show straight away whether they are right, and correct answers earn points, with a results screen at the end. Sentence-writing tasks are for pupils' own answers and are not marked automatically.

A 21-slide interactive lesson that runs in any web browser on a computer, tablet or interactive whiteboard. Members open it online from their year group page. Buying it on its own gives you a .zip download to unzip and open.

Free preview: try the first slides before you decide. Included in every Skoolmaths plan.

Too much heavy fuel oil and not enough petrol? Cracking is the chemist's answer. This 21-slide interactive lesson on cracking hydrocarbons takes pupils from first ideas to exam-style explanations, with 12 self-marking activities and nothing to prepare beforehand.

Teaching Cracking Hydrocarbons in GCSE Chemistry

Pupils define cracking as thermal decomposition, compare catalytic cracking over a hot zeolite or aluminium oxide catalyst with steam cracking, and use supply-and-demand data to decide which fractions a refinery should crack. Several activities practise balancing cracking equations by subtracting carbons and hydrogens, and pupils identify the shorter alkanes and alkenes produced and what each is used for.

What Pupils Will Learn

Define cracking as a thermal decomposition reaction.
Describe catalytic cracking and steam cracking.
Explain why cracking is needed, using supply and demand data.
Balance equations for cracking reactions.
State the uses of the products of cracking.

What’s Included

21-slide interactive lesson on cracking hydrocarbons
12 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
Examples from both Nigeria and the UK make the chemistry feel real
Works for whole-class teaching, independent study or revision

Curriculum Alignment

Supports the organic chemistry content of UK GCSE Chemistry (AQA, Edexcel and OCR) and the Nigerian Senior Secondary Chemistry curriculum (SS2–SS3), 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–SS3 in Nigeria.

Is it self-marking? Yes — all 12 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.

Year Groups	Year 10–11
Resource Type	🎓 Interactive Lesson & Activities
Format	Digital Only
Curriculum	England & Wales — KS4 (Years 10–11)
Added	23 October 2026