# Scale and size of universe guided notes.docx - Guided Notes...

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Guided Notes – The Size and Scale of the UniverseThe Solar System ScaleThe solar system consists of 8 planets and many smaller bodies.The person given the scientific credit for convincing enough people to hold the assessment that theEarth orbits the Sun is CopernicusA dwarf planet is a object that is too small to be a planetAbout 99.8 percent of the solar system is the SunThe two largest planets that account for most of the other small percentage of the solar system Saturnand JupiterTwo types of objects that orbit the Sun (other than planets and dwarf planets) are asteroids and cometsA Moon is what orbits planets. All of the planets have moons except for Mercury and Venus.Test Yourself – Solar SystemOur solar system consists of: the things that orbit the sun, as well as the sunYour Turn – Solar System ObjectWhat can you say about the picture shown? What would you like to know about it? (Please be sure toanswer in complete sentences and explain your thoughts clearly.)I do not know what the picture is but I am going to assume it is the solar system, so I will comment onthe vastly different sizes of everything.The Stellar ScaleA star is made of helium as well as hydrogen and held together by gravityA light year can be described as distance, and its value is 186,000 milers per secondDescribe what the speed of light is and what it means: The cosmic speed limit that cannot be surpassed
Test Yourself – Sound – minuteSound travels at a speed of 300 meters per second. In analogy to the light-year, what does 1 sound-minute equal?Distance traveled in sixty secondsThe Nearest StarsThe nearest star to our Sun is proxima centauri and is approximately 5 light years away.

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Term
Winter
Professor
bennert
Tags
Planet