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Earth, Moon, and Sun Interactions

Earth, Moon, and Sun Interactions. The Moon. The moon completely revolves around Earth in 27.3 days The near side of the moon always faces Earth. Phases of The Moon. Phases are the different shapes of the moon that are visible from Earth

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Earth, Moon, and Sun Interactions

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  1. Earth, Moon, and Sun Interactions

  2. The Moon • The moon completely revolves around Earth in 27.3 days • The near side of the moon always faces Earth

  3. Phases of The Moon • Phases are the different shapes of the moon that are visible from Earth • Caused by changes in the positions of the sun, Earth, and moon • Phases depend on how much of the sunlit side of the moon faces Earth

  4. MOON PHASES

  5. Tides • The tide is the rise and fall of water • Tides usually rise for 6 hours, then fall for 6 hours Why? • Gravity pulls the moon and Earth towards each other • Differences in how much the moon pulls on different parts of Earth's oceans make tides

  6. Eclipses • An eclipse occurs when an object in space comes between the sun and a third object, and casts a shadow on that object. • When the moon's shadow hits Earth or Earth's shadow hits the moon, an eclipse occurs. • There are two types of eclipses: Solar eclipses and lunar eclipses. • solar=sun • lunar=moon

  7. Lunar and Solar Eclipses

  8. Solar Eclipses • a solar eclipse occurs when the moon passes between the sun and earth, and the moon fully or partially blocks the sun • Solar eclipses only occur at new moons • There are 4 types of Solar Eclipses -a total eclipse -a annular eclipse -a hybrid eclipse -a partial eclipse

  9. Lunar Eclipses • A lunar eclipse occurs when the moon passes directly behind the earth into its umbra(shadow) • This can only occur when the sun, earth, and moon are alligned exactly with the earth in the middle. • A lunar eclipse can only occur the night of a full moon • There are 2 types of lunar eclipses -partial lunar eclipse -total lunar eclipse

  10. Earth's Tilt and Revolution • Earth has 2 revolutions one around the sun and the other on its axis • When the earth revolves it will move closer or farther away from the sun each day • The earth rotates on its axis to the east • Speed of the rotation has many effects over years such as shape, climate, ocean depth currents and tectonic forces

  11. Earth's Tilt and Revolution • Earth is tilted on its axis 23.5 degrees causing seasons • Summer is created when the hemisphere is facing towards the sun and winter is caused when the hemisphere is facing away from the sun • When a hemisphere is tilted towards the sun it will have longer days and short nights and the other away around for the hemisphere tilted away from the sun • The equator has no seasons since the sun usually hits at the same angle everyday.

  12. Sources http://commons.wikimedia.org/wiki/File:AxialTiltObliquity.png http://www.texample.net/tikz/examples/earth-orbit/ http://www.universetoday.com/60655/earth-revolution/ Astronomy book http://www.solarsystem.nasa.gov/images/Moon.jpg https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=aahp76vAd3Pd9M&tbnid=9sM05oBriZfK2M:&ved=0CAUQjRw&url=http%3A%2F%2Fmoonstemple9.blogspot.com%2F2013%2F03%2Fmoon-phases-purpose-and-function.html&ei=rBeDUb_tFurL0AHw2oGQCQ&bvm=bv.45960087,d.dmQ&psig=AFQjCNGb2gpAfd-j7Ap7bnbVMXRpH9c-_g&ust=1367632169878091 http://www.moonconnection.com/lunar_vs_solar.phtml

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