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Transcript
A Solar System is Born 4/25/14 19-1a pgs. 510-514 • IN: What do you think the planets are made of? • Solar System – composed of the sun (a star) and the planets and other bodies that travel around the sun. • Nebulas – a large cloud of dust and gas in interstellar space. –the location of star formation • Solar Nebula – the name of the nebula that formed our solar system. • Planetesimals – the tiny building blocks of the planets that formed as dust particles stuck together and grew in size. Planetesimals to Planets • Hubble image of protoplanetary discs in the Orion Nebula, a light-years-wide "stellar nursery" probably very similar to the primordial nebula from which our Sun formed. • OUT: What role does gravity play in our solar system? A. B. D. C.
