Birth of a star
I can describe what a star is and how it forms.
Birth of a star
I can describe what a star is and how it forms.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- The Sun is a medium sized star that emits radiation as a result of nuclear fusion reactions in its core.
- A star is formed from a cloud (nebula) of dust and gas pulled together by gravitational attraction.
- Dust in a nebula is any sort of fine particle, such as specks of rock, and most of the gas in space is hydrogen.
- As a star forms, dust and gas accelerate towards its centre over a very long time, creating very high temperatures.
- A star forms when hydrogen nuclei in a protostar fuse together converting mass into gamma radiation that causes heating.
Keywords
Star - a ball of very hot gas and plasma that emits radiation and is powered by nuclear fusion in its core
Nuclear fusion - the process of merging small nuclei into larger nuclei with the release of energy
Nebula - a region of space containing traces of gas (mostly hydrogen) and dust
Protostar - a dense, hot, ball of gas formed by a collapsed nebula
Main sequence star - the stable period of a star when it is fusing hydrogen in its core
Common misconception
The Sun is not a star.
Compare the properties of the Sun with those of stars to show they are similar.
To help you plan your year 11 physics lesson on: Birth of a star, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 11 physics lesson on: Birth of a star, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 4 physics lessons from the Gravity in space unit, dive into the full secondary physics curriculum, or learn more about lesson planning.
Licence
Starter quiz
6 Questions
a large spherical object that orbits a star
a very hot ball of gas and plasma that emits light radiation
a group of billions of stars clustered together in space
the whole of space and everything in it