Do Now!
• What is the weather like outside right now?
How would it feel if we were having class right
now on the beach looking towards the Atlantic
Ocean?
• Other than the gases in the atmosphere that
hold in heat, explain what else might hold
heat and help keep the earth warm?
Math EOC Review
Objective
2.3.1 Water and coastal climates
SWBAT Explain how coastal climates are
moderated by water in comparison to inland
climates.
*Write into notebook information
that is in YELLOW!
Water slows large changes in temperature.
The oceans absorb one thousand times
more heat than the atmosphere and holds
80 to 90% of global warming heat.
Heat Capacity- The amount of heat
required to change the
temperature of a substance 1°C.
Factors Affecting Specific Heat:
1. The more substance the higher the specific
heat capacity.
If both were exposed to the sun which
would increase in temperature first??
Factors Affecting Specific Heat
2. Different solutions hold different amounts of heat.
Water vs. Alcohol
VS.
• It takes more energy to evaporate H2O
• H2O has a higher specific heat than alcohol
Climate Control
• Every day the land heats much faster
than the sea, and every night the
land cools faster. When the land
heats up, the air above it heats up as
well. On the other hand, the ocean
heats up and cools down relatively
slowly. Therefore, areas near the
ocean generally stay cooler during
the day and have a more moderate
temperature range than inland areas.
Heat Capacity
• Heat capacity is the amount of energy
required to raise the temperature of a
substance by 1°C.
• Water has a higher heat capacity than
soil. (Water holds more heat than land).
Video Synthesis
• http://www.youtube.com/watch?v=YxqcGWv
MaUQ
• How does the climate of City A differ from the
climate of City B?
• What is the reason for this difference?
Video Analysis
• City B (Coastal)-more moderate temperatures,
small range in temperature
– Water heats up and cools down more slowly
• City A (Inland)-more extreme temperatures,
more variation in temperatures
– Land heats up and cools down more quickly
Summary
• Compared to inland regions, coastal
areas have:
–Cooler summers and warmer
winters
–A more mild climate
–A lower yearly temperature range
Seasonal Temperature Graph
• Work quietly and independently at your seat.
• Please raise your hand if you have a question.
• Follow the directions on your handout. You
will answer the questions on the back of your
graph.
• YOU MUST COMPLETE YOUR GRAPH AND
QUESTIONS BEFORE LEAVING CLASS TODAY.
Climate Graph Analysis
• As this cooler maritime air comes ashore, air
temperatures over land will be reduced.
Because the water's temperature doesn't
fluctuate as much as that of land, temperature
ranges are smaller over water and coastal
locations than those in the interior. Finally,
seasonal temperature lags are longer, by
about a month, for coastal locations than their
interior counterparts.
Exit Ticket
1) How does the ocean effect coastal climate?
2) What is the term for the heat required to
change the temperature of a substance?
3) How does the amount (mass) of a substance
affect its ability to change temperature?
4) Which has a higher heat capacity, water or
alcohol? What type of heat capacity is this?