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Population changes
Interpret population growth and predator–prey graphs and explain the factors that limit population size.
⏱ 19 min❓ 8 questions
What you'll be able to do
- ✔I can calculate population change from births, deaths, immigration and emigration
- ✔I can describe the phases of exponential and S-shaped growth curves and explain carrying capacity
- ✔I can interpret predator–prey graphs and explain density-dependent and density-independent factors
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:
- 🔢Number answer — Work out the answer and type the number.
- 🔗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, AC9S9I04