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The nitrogen cycle
Explain how bacteria fix, recycle and release nitrogen, and sequence the stages of the nitrogen cycle.
⏱ 19 min❓ 8 questions
What you'll be able to do
- ✔I can explain why living things need nitrogen but cannot use nitrogen gas directly
- ✔I can describe the roles of nitrogen-fixing, decomposing, nitrifying and denitrifying bacteria
- ✔I can sequence the stages of the nitrogen cycle and apply it to farming
How this works
- 1Read the short explanations first — they teach you what you need before each question.
- 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
- 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.
What's inside
8 questions and 1 quick teaching card, including:
- ⚖️True or false — Read the statement and decide if it's true or false.
- 🔗Match the pairs — Choose the partner that goes with each item.
👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.
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Curriculum: AC9S9U02