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Royal Observatory Greenwich
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When will the Sun become a red giant?
Produced by the Royal Observatory Greenwich, this booklet guides students to use Einstein’s mass-energy equivalence equation to determine when the Sun will become a red giant. Included is an online video that discusses how we can determine how old the Sun is. Details on the relationship between mass and energy in the Sun are included, this is followed by questions and answers that test student’s understanding. The video included is suitable to engage key stage four students during an astronomy module but a teacher would need to provide extra support for students to allow them to complete the questions.
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