Date post: | 07-May-2015 |
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Ch. 8 Lesson 5What is climate?
weather•made up of all the conditions in one place @ single moment
climate • average of weather conditions over long
time (usually 30 yrs.)• does not change much daily• incl:
1. avg. amt. precipitation
2. avg. temp
3. how much temp. changes during yr.
landforms affect climate
• areas on opposite sides of mountain range can have different climates
rain shadow• side of the mountain that
does not have clouds or rain
oceans affect climate• slow rise & fall of air temp.
• currents can make climate warmer or cooler
Gulf Stream
•ex. Gulf Stream & North Atlantic Drift
(warms wind)
factors that can cause
climatechange
volcanic eruptions
asteroid/meteoroidimpacts
carbon dioxide,
methane,water vapor
Scientists debate on why climates have changed.
Review
•How are weather and climate different?
Review
•What geographical features might affect
our local climate?
Review
•How are fossils used to study past
climates?
Review
•What can cause a sudden climate
change?
Review
•Would a large volcanic eruption cool or warm the climate?
Review
•How do the Gulf Stream and North
Atlantic Drift currents affect weather in
Europe?
Review
•What human activity might have contributed
to an increase in average temperature in North America during
the 20th century? How?