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revision physics test - Coggle Diagram
revision physics test
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How is a star born?
Stage 1: a nebula is a collection of dust, rock and gas.
Stage 2: Protostar- gravity will pull these particles together as they move inwards with gravity they become a protostar.
Stage 3: main sequence
Stage 4: red giant
Stage 5: death (small stars will collapse and form white dwarf)
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