Effects of the Earth & Moon’s Orbits

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Presentation transcript:

Effects of the Earth & Moon’s Orbits Background image from: http://fosterweb.com/thinkquest/begin/earthsunmoon.htm

Hemispheres The Earth is divided into 2 hemispheres. Image taken from: http://www.kashif-ali.com/2010/03/northern-southern-hemispheres/

Earth’s Axis The Earth’s axis is tilted 23.5º from vertical. Image from: http://www.divulgence.net/axis%20shift%202.html

Image from: http://science. howstuffworks

Summer Solstice On June 21, the northern hemisphere is tilted the most toward the Sun. Image from: http://www.drikpanchang.com/seasons/season-summer-solstice-timings.html

Winter Solstice On December 21, the northern hemisphere is tilted the most away from the Sun. Image from: http://simple.wikipedia.org/wiki/Winter_solstice

Equinoxes Equinoxes are days when the hours of daylight equal the hours of darkness. Image from: http://en.wikipedia.org/wiki/Equinox

What keeps the Earth in orbit around the Sun? Background image from: http://faculty.wcas.northwestern.edu/~infocom/Ideas/solstice.html

Gravitational Force …is the force of attraction between 2 objects. The Earth’s gravitational force keeps the Moon in orbit around it.

Moon’s Orbit It takes about 27 days for the Moon to orbit around the Earth. It takes about 27 days for the Moon to rotate around its axis. Image from: http://www.dailymail.co.uk/sciencetech/article-1367846/Super-moon-Clear-skies-set-reveal-tonights-lunar-perigee-glory.html

Lunar Cycle …is the sequence of phases made by the Moon during one orbit around the Earth Image from: http://www.lpi.usra.edu/education/skytellers/moon_phases/about.shtml

Image from: http://www.moonconnection.com/moon_phases.phtml

What causes eclipses? Image from: http://news.nationalgeographic.com/news/2012/11/pictures/121114-total-solar-eclipse-pictures-australia-space-science/

Image from: http://www2.chilton.k12.wi.us/sromekg/astronomy.htm

Solar Eclipse …is when the Moon blocks from or all of the Sun’s light form the Earth. They are very rare. Image froM: http://www.cbc.ca/news/technology/rare-solar-eclipse-takes-place-tonight-over-antarctica-1.2624236

Lunar Eclipse …is when the Earth blocks some or all of the Sun’s light from the Moon. They are much more common. Image from: http://www.blogto.com/city/2010/12/photos_of_the_2010_lunar_eclipse_/