Motion in the Solar System Earth’s Rotation: Earth rotates about it axis once every __________ 24 hours. -the side of the Earth facing the Sun is in daylight

Motion in the Solar System Earth’s Revolution: the travel of the Earth around the Sun -takes 365.25 days (add a day every 4 years) -revolution time roughly equates to how far away from the Sun the planet sits

Earth’s Revolution- you tube- http://www.youtube.com/watch?v=06jBiHKOMuQ

Motion in the Solar System Earth’s Tilt: axis from North to South pole is not perpendicular to the Earth’s orbital path around the Sun -it is tilted by 23.5 degrees

Motion in the Solar System Earth’s Tilt: Seasons: as Earth revolves around the Sun, different areas of the Earth directly face the Sun Winter: the southern hemisphere faces the Sun Summer: the northern hemisphere faces the Sun

Motion in the Solar System Earth’s Tilt: Seasons:

The reason for the seasons! http://www.youtube.com/watch?v=Pgq0LThW7QA (6min)

Motion in the Solar System Motions of the Moon: the Moon revolves around the Earth and rotates about its axis -the rotation rate equals its revolution rate so the same side of the Moon always faces the Earth

Websites Our World: the moon, NASA- 4:00min http://www.youtube.com/watch?v=8oDvWrvVktQ Phases of the moon-3:16 http://www.youtube.com/watch?v=nXseTWTZlks

Motion in the Solar System Phases of the Moon: lunar cycle: all the phases of the Moon New Moon: begins the lunar cycle -Moon is not visible because the side illuminated by the Sun faces away from Earth -amount of illuminated side visible increases from this point each night Full Moon: the entire lit side of the Moon faces the Earth -the amount of illuminated side facing the Earth diminishes from this point until the next new moon

Motion in the Solar System Phases of the Moon:

Motion in the Solar System Eclipse: darkening of a celestial body due to the position of another celestial body Solar Eclipse: when the Moon and Sun align and the Moon blocks the Sun from view

Motion in the Solar System Eclipse: darkening of a celestial body due to the position of another celestial body Lunar Eclipse: when the Earth is positioned between the Sun and Moon so the Moon is completely in the Earth’s shadow

websites Solar and lunar eclipse-you tube-1 min http://www.youtube.com/watch?v=tIE1MTGz4eI Walking on the moon-youtube (2:30) http://www.youtube.com/watch?v=cwZb2mqId0A&feature=fvsr