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Life cycles of stars
Explain how stars form in nebulae and why their mass decides whether they end as white dwarfs, neutron stars or black holes.
⏱ 19 min❓ 8 questions
What you'll be able to do
- ✔I can describe how a star forms from a nebula and what keeps a main-sequence star stable
- ✔I can compare the life cycles of low-mass and high-mass stars
- ✔I can explain how a star's mass determines its lifetime and its final remnant
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:
- ↕️Put in order — Use the up and down arrows to sort the steps.
- 🔗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: AC9S10U03