1. HW: Factors Affecting Climate Divide your paper into 4* squares. Label them the following (4 front, 4 back): 1.Low Latitudes5. Wind Patterns 2.High Latitudes6. Ocean Currents 3.Mid-Latitudes7. El Niño 4.Elevation8. Landforms Use Ch. 3.2 You will write at least 3 main points for each IN YOUR OWN WORDS! Illustrations; highlight vocab Leave room for extra notes I may have!

2. Earth-Sun Relationships (3.1)

3. Climate vs. Weather Weather: condition of atmosphere in 1 place during a limited time

4. Climate vs. weather Climate: weather patterns of an area over a long period of time

5. The most important factor of climate is Earth’s position in relation to the sun

6. Earth’s Tilt Axis: imaginary line runs from pole to pole, through center –Tilted at 23 ½ º angle –Places receive diff. amounts of light at diff. times

7. Earth’s Tilt Areas with direct sunlight  warmer temps. (Tropics, Equator) Areas with indirect sunlight  cooler temps. (High latitudes/ mid-lat)

9. Earth’s Rotation Earth rotates on its axis –One complete rotation = 24 hours –From west to east, one hemisphere at a time

10. Earth’s Revolution As it rotates, Earth revolves around the sun (365 days) Tilt + revolution = seasons –Δs in length of days and temp. –Reversed for N & S hemispheres

11. Interactive Diagram Interactive Diagram

12. Equinoxes & Solstices Equinox: Spring and Fall –Equal days and nights Solstice: Summer and Winter –Longer day or shorter day

13. Equinoxes & Solstices Spring equinox  March 21- rays hit Equator directly…equal day/night Summer solstice  June 22- rays hit Tropic of Cancer…longest day (US)

14. Equinoxes & Solstices Fall equinox  Sept. 23- rays hit Equator directly…equal day/night Winter solstice  December 22- rays hit Tropic of Capricorn…shortest day (US)

16. Equinoxes & Solstices So if it is summer in Houston, what season is it in South Africa? If we are wearing long sleeves and jackets, what are they wearing in China? Alaska Summer Solstice Alaska Winter Solstice

17. The Poles For 6 months one pole is pointed toward sun  constant sunlight Other is pointed away  little to no sunlight “lands of the midnight sun”

19. The Greenhouse Effect The perfect balance must be kept: –Too much heat escapes  freeze –Too much heat is trapped  dry out

21. Climate Change: Warming Basic Theory

22. Climate Change: Cooling/Cyclical

23. Climate Change: Warming Basic Theory Read pages 58-59 Be prepared to share key concepts (cause & effect)

24. Current Events Search Find two articles, one from each side of the global climate change debate –Global Warming vs. Global Cooling –OR Human-caused Climate Change vs. Cyclical Climate Change Staple/Tape RELIABLE articles into spiral. Include citation. Make t-chart of comparison points. Write a ½-1 page reflection on YOUR opinion