Understand that stars derive their energy from nuclear reactions, primarily the fusion of hydrogen into helium in stable stars.

Quick explanation

Understand that stars derive their energy from nuclear reactions, primarily the fusion of hydrogen into helium in stable stars

• This point belongs to Stars and the Universe, especially Stars and the Universe outcomes.
• You need to be able to understand that stars derive their energy from nuclear reactions, primarily the fusion of hydrogen into helium in stable stars.
• The key ideas to know are Explain and Describe.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.