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COURSE LECTURE NOTES:

| SCIENCE | MATTER | SOLAR SYSTEM | PLANETS | ATMOSPHERE | WIND and TEMPERATURE | HUMIDITY | WEATHERING | SOIL | SEASONS | MASS WASTING | SEASONS and CLIMATE | WIND WORK | STREAMS | LAND FORMS | GROUND WATER | CAVES/KARST | THE OCEAN | TIDES & ESTUARIES | WAVES | GLACIERS | GLACIAL LANDFORMS | VOLCANOES | VOLCANOES | CHON | PLATE TECHTONICS | EARTHQUAKES | ROCKS | CLIMATE CHANGE |

THE SOLAR SYSTEM

The Solar System consists of 6 layers: the Sun, planets & their moons, asteroids, meteoroids, comets, Dwarf Planets/Keiber Belt Objects. (Acoustical waves were used to identify these)

    1. The Sun – It is a yellow medium star (A star is spherical gas ball held together by gravity.)
    It contains 99% of matter/mass of the system. It produces all visible light; all other light (i.e. from the Moon) is reflected. It is made up of Hydrogen and Helium. Peak energy of the Sun in the yellow color frequency. It produces light/energy by fusion that is by the creation of larger atoms from smaller atoms. i.e.



    Layers of the Sun:






    2. Planets and their moons – planets are spherical objects that orbit the Sun. Moons are spherical (the larger ones) objects that orbit planets. When large enough they become spherical due to their mass.(Galileo discovered the 4 moons, other than ours, in the Solar System orbiting Jupiter).

    3. Asteroid – rock orbiting the Sun. Most are in the Asteroid Belt outside of Mars, but some can be “Near Earth” objects

    4. Meteoroid – rock in space. (Meteor is a meteoroid entering our atmosphere and making a streak of light. Meteorite is a meteoroid that hits the Earth)

    5. Comet – ice (made up of different gasses i.e. H2O, CO4, CH4, and others) and rocks. Usdually thr rocks are dust particles to small boulders; these may be the source of meteroids.

    6. Dwarf planets and other Keiper Belt Objects – icy debris, orbits vary; these may be the source of some comets.


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