HW: Factors Affecting Climate• Divide your paper into 4* squares.

• Label them the following (4 front, 4 back):1. Low Latitudes 5. Wind Patterns2. High Latitudes 6. Ocean Currents3. Mid-Latitudes 7. El Niño4. Elevation 8. 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!

Earth-Sun Earth-Sun RelationshipRelationship

s (3.1)s (3.1)

Climate vs. WeatherClimate vs. Weather

• Weather: condition of atmosphere in 1 place during a limited time

Climate vs. weatherClimate vs. weather

• Climate: weather patterns of an area over a long period of time

The most The most important factor important factor

of climate is of climate is Earth’s position Earth’s position in relation to the in relation to the

sunsun

Earth’s TiltEarth’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

Earth’s TiltEarth’s Tilt

• Areas with direct sunlight warmer temps. (Tropics, Equator)

• Areas with indirect sunlight cooler temps. (High latitudes/ mid-lat)

Earth’s RotationEarth’s Rotation• Earth rotates on

its axis–One complete

rotation = 24 hours

–From west to east, one hemisphere at a time

Earth’s RevolutionEarth’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

Interactive Diagram

Equinoxes & SolsticesEquinoxes & Solstices

• Equinox: Spring and Fall–Equal days and nights

• Solstice: Summer and Winter–Longer day or shorter day

Equinoxes & SolsticesEquinoxes & Solstices

• Spring equinox March 21- rays hit Equator directly…equal day/night

• Summer solstice June 22- rays hit Tropic of Cancer…longest day (US)

Equinoxes & SolsticesEquinoxes & Solstices• Fall equinox Sept. 23- rays

hit Equator directly…equal day/night

• Winter solstice December 22- rays hit Tropic of Capricorn…shortest day (US)

Equinoxes & SolsticesEquinoxes & 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

The PolesThe 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”

The Greenhouse EffectThe Greenhouse Effect

• The perfect balance must be kept: –Too much heat escapes freeze

–Too much heat is trapped dry out

Climate Change: Climate Change: Warming Warming Basic Basic TheoryTheory

Climate Change: Climate Change: Cooling/CyclicalCooling/Cyclical

Climate Change: Climate Change: Warming Warming Basic Basic TheoryTheory

• Read pages 58-59

• Be prepared to share key concepts (cause & effect)

CurrentCurrent Events Search 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