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3.1 What is Season?

Seasons happen due to the yearlyrevolution of the Earth

around the Sun and the tiltof the Earth's axis relative to the

plane of revolution. In Temperate and Polarregions, the

seasons are marked by changes in the amountof sunlight

which may cause animals to go intohibernation or to migrate,

and plants to be dormant.The Northernhemisphere is closer to the sun at times of

the year than the southern, it is exposed to more light causing

summer to come into action at different times as the earth

revolves.

In temperate and polar regions generally four seasons are

recognized: spring, summer, autumn, winter.

In some tropical and subtropical regions it is more

common to speak of the rainy (or wet, or monsoon) season

versus the dry season, because the amount ofprecipitation

may vary more dramatically than the average temperature. In

other tropical areas a three-way division into hot, rainy and

cool season is used. In some parts of the world, special

"seasons" are loosely defined based upon important events

such as a hurricane season, tornado season or a wildfire

season.

Group No. 1

Assignment

http://en.wikipedia.org/wiki/Temperatehttp://en.wikipedia.org/wiki/Polar_climatehttp://en.wikipedia.org/wiki/Spring_(season)http://en.wikipedia.org/wiki/Summerhttp://en.wikipedia.org/wiki/Autumnhttp://en.wikipedia.org/wiki/Winterhttp://en.wikipedia.org/wiki/Tropicshttp://en.wikipedia.org/wiki/Subtropicalhttp://en.wikipedia.org/wiki/Wet_seasonhttp://en.wikipedia.org/wiki/Monsoonhttp://en.wikipedia.org/wiki/Dry_seasonhttp://en.wikipedia.org/wiki/Precipitation_(meteorology)http://en.wikipedia.org/wiki/Hurricanehttp://en.wikipedia.org/wiki/Tornadohttp://en.wikipedia.org/wiki/Wildfirehttp://en.wikipedia.org/wiki/Temperatehttp://en.wikipedia.org/wiki/Polar_climatehttp://en.wikipedia.org/wiki/Spring_(season)http://en.wikipedia.org/wiki/Summerhttp://en.wikipedia.org/wiki/Autumnhttp://en.wikipedia.org/wiki/Winterhttp://en.wikipedia.org/wiki/Tropicshttp://en.wikipedia.org/wiki/Subtropicalhttp://en.wikipedia.org/wiki/Wet_seasonhttp://en.wikipedia.org/wiki/Monsoonhttp://en.wikipedia.org/wiki/Dry_seasonhttp://en.wikipedia.org/wiki/Precipitation_(meteorology)http://en.wikipedia.org/wiki/Hurricanehttp://en.wikipedia.org/wiki/Tornadohttp://en.wikipedia.org/wiki/Wildfire

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Answer these questions.

1. How long does it take for the Earth to move around the

Sun and cause the season?

..

2. Which part of the world is closer to the Sun in summer?

.

3. How many seasons are generally recognized in Temperateand Polar regions?

..

What are they?

..

4. What are the two parts of the Earth that are north and

south of the tropics called?

..

Vocabulary Study

revolutio

n

the movement of something in a circle

around something else, either once or

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continuously

tilt to move something so that one side is

lower than the other

hemisph

ere

one half of the Earth, divided between

north and south by the equator

region a large area of land whose politics,

geography, or culture is different from

other areas

amount a quantity of something

hibernati

on

if an animal hibernates, it sleeps for the

whole winter

migrate travel regularly from one part of the

world to another

dormant not active or not growing at the present

time

expose to show something that is usually covered

or hidden

versus show that two people or teams are

competing against each other in a game

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or court case:

precipita

tion

rain, snow etc that falls on the ground, or

the amount of rain, snow etc that falls

average the average amount is the amount you get

when you add together several quantities

and divide this by the total number of

quantities