1. Weather and Climate
LAME COWS

2. What’s the difference?
Weather is the condition of the bottom layer of the earth’s atmosphere in one place over a short period of time
Climate is the term for weather patterns that an area typically experiences over a long period of time

3. Weather vs Climate List 3 kinds of precipitation:
What is the climate like in Yuma, Arizona?

4. Latitude
Warmest weather near Equator
BIGGEST EFFECT ON CLIMATE!!!

5. Why no polar Pineapples?

6. Air (Atmospheric) Pressure
Is the weight of the atmosphere overhead
Caused by unequal heating of earth’s surface
Rising warm air=low pressure areas
Falling cold air=high pressure areas
Winds move from high pressure to low pressure areas

7. The Sun 93 million miles away
Gives off energy and light essential for survival

8. The Sun

9. The Sun and Seasons Watch the Video and explain how the Sun causes the seasons on earth

10. Greenhouse Effect Small amount of solar radiation reaches earth
Atmosphere is like a greenhouse-it keeps the warmth from escaping back into space too quickly

12. Solstices
Days when sun is directly overhead Tropics of Capricorn and Cancer
June 21- Longest amount of daylight
December 21- Least amount of daylight
Winter in the Northern Hemisphere is summer in the Southern Hemisphere and vice versa

13. Winter in Fairbanks

14. Equinoxes March 21, September 23
Equal hours of day and night everywhere on earth
At noon, the sun is directly over the Equator

15. Mountain Barriers

16. Elevation

17. Continental Location Oceans are solar energy collectors
Because water heats & cools more slowly than land…
Coastlines have a stable temperature
Interior of the continent has extreme temperatures (hotter & colder)

18. Ocean Currents Movement of water is called current
Ocean currents flow in circular paths
Warm currents carry water from low high latitudes
Cool currents return cooled water from high low latitudes

19. Wind Belts Movement of air is called wind
Trade winds: high pressure to low pressure
Westerlies: high pressure to low pressure, carry weather across US from west to east
Polar winds: bring cold air from the poles

20. Storms Occur during low pressure conditions
Storm front= where 2 air masses of different temperatures meet
Thunderstorms
Tornadoes
hurricanes