Karteikarten am OCR 21st Century Science - Physics - Module One , erstellt von joliverhouse am 02/04/2015.
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Erstellt von joliverhouse
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Schließen
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Erstellt von joliverhouse
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P1 REVISION
THE EARTH in the UNIVERSE
How many planets are in the solar system
Other than planets, name three things that orbit the sun.
Approximately how old is the solar sytem?
What is the source of the Sun's energy?
What are comets made of?
Roughly, how many stars make up the Milky Way?
What is a light year?
Roughly, how many times larger is the diameter of the Milky Way than the diameter of the Sun?
