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Earth / Moon Relationships Tides, Eclipses, Phases, & Formation.

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Presentation on theme: "Earth / Moon Relationships Tides, Eclipses, Phases, & Formation."— Presentation transcript:

1 Earth / Moon Relationships Tides, Eclipses, Phases, & Formation

2 Rotating & Revolving Rotating –The spinning of a planet, moon, sun or other object on its axis. Revolving –The orbital path of a space object as it moves around another.

3 Earth's rotation and axis animation hill.com/sites/dl/free/ x/59233/8_1.htm

4 Earth Revolves around the Sun

5 Phases of the Moon < New < Waxing Crescent < First Quarter < Waxing Gibbous < Full < Waning Gibbous < Third Quarter < Waning Crescent

6

7 Tides –Daily rise and fall of the Earth’s waters caused by the gravitational pull of the moon and sun.

8 Tides Spring –When the sun and the moon are aligned the pull is greater on the earth, thus a greater tide.

9 Tides Spring Neap –When the sun and moon are at right angles to each other their pull is counteracted creating lower tides.

10 Tides animation hill.com/sites/dl/freehttp://hig hered.mcgraw- hill.com/sites/dl/free/ x/59233/5_13.htm/ x/59233/5_13.htmhttp://hig hered.mcgraw- hill.com/sites/dl/free/ x/59233/5_13.htm

11 Eclipses Solar Eclipse –The Moon passes between the Earth and the Sun casting a shadow on the Earth.

12 Eclipses Solar Eclipse Lunar Eclipse –During a Full Moon the shadow of the Earth can then be seen cast onto the Moon.

13 Eclipses Umbra –The area of shadow that creates a total eclipse. Penumbra –The area of shadow that creates a partial eclipse.

14 Eclipses Umbra –The area of shadow that creates a total eclipse. Penumbra –The area of shadow that creates a partial eclipse.

15 Moon Formation The Fission Theory: –The Moon was once part of the Earth and somehow separated from the Earth. The Capture Theory: –The Moon was formed somewhere else, and was later captured by the gravitational field of the Earth. The Condensation Theory: –The Moon and the Earth condensed together from the original nebula that formed the Solar System. The Colliding Planetesimals Theory: –The interaction of very large chunks of rocks like asteroids condensed to from the Moon. The Ejected Ring Theory: –A planetesimal the size of Mars struck the earth, ejecting large volumes of matter. A disk eventually condensed to form the Moon. Formation Video

16 Credits 09jan01/zirn1_big.jpg html /terc/content/visualizations/es2501/es2501page 01.cfm?chapter_no=25 oon_formation.html m


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