Look Through the PowerPoint Slides and Answer the Questions on Outcome Related Activity #3 April 3 rd, 2014

Sun’s changing vertical ray Sep. 21 Dec. 21 Jun 21 Mar. 21 Red dot shows where Sun is overhead

Winters in the North Pole… No sunlight between early October until early March

Summers in the North Pole The sun rises at the North Pole on the Spring Equinox, approximately March 21, and the sun rises higher in the sky with each advancing day, reaching a maximum height at the Summer Solstice, approximately June 21. The sun sinks below the horizon on September 21 st.

Changing Zodiac Constellations

Match the picture with the season

Date? September 23 Vertical Ray? Equator Sunrise? Due East Sunset? Duration of daylight? 12 hours Name of orbit position? Autumnal Equinox Due West

Date? Dec. 21 Vertical Ray? 23.5 South Sunrise? Southeast Sunset? Duration of daylight? 8 hours Name of orbit position? Autumninal Equinox Southwest Sun’s Path? Average Name of orbit position? Winter Solstice

Date? Mar 21 Vertical Ray? Equator Sunrise? Due east Sunset? Duration of daylight? 12 hours Name of orbit position? Autumninal Equinox Due west Sun’s Path? Average Name of orbit position? Sun’s Path? Low – note long shadows Winter Solstice Name of orbital position? Vernal Equinox

Date? June 21 Vertical Ray? 23.5 North Sunrise? Northeast Sunset? Duration of daylight? 16 hours Name of orbit position? Autumninal Equinox Northwest Sun’s Path? Average Orbital position? Summer Solstice

At which season is the Earth very slightly closer to the sun Winter (January) perihelion Summer (June) aphelion On which date is the Daylight period longer For the northern hemisphere?

Label north on the diagram Draw in the path of The sun on Dec.1 st Label the North Star Polaris On which date at noon will the observer cast the shortest shadow?

Where is the sun’s Vertical ray striking On the autumnal Equinox? equator Where is the sun’s vertical ray striking on June 21 st ? 23½º N Where is the sun’s vertical ray striking on December 21st ? 23½º S

east south north Dec. 21st March 21st June 21st On which date are the sun’s rays striking most directly? On which date is the heating from the rays most efficient? On which date is the Surface temperature most likely highest? On which date are shadows at noon the longest?