seasons

Why do we have seasons? Explain the Earth's location during various seasons. Does it change relative to the sun? Resources: [] [] [] [] [] [] [] []
 * How do the seasons affect various regions of the world? How does your global location affect the following: economy, population, temperature, and harvest?
 * Explore the coriolois
 * Your wiki should include a discussion of at least one city or region per continent.
 * Example Key words: Weather, climate, gross domestic product, equator, rain season, cultivation, latitude, longitude
 * Extension- Discuss the recent Earthquakes in Haiti - How does their geographic location relate to these earth quakes?
 * Example key words: Techtonic plates, geological, poverty

prezi : []

= S easons =


 * __ Why do we have seasons? __**

Tilt/revolution- The Earth revolves around the Sun while it is spinning on it axis. The North Pole always points in the Same Direction.
 * There are two reasons why we have seasons: **

We now know that Earth spins on an axis that is tilted relative to it's plane of orbit and orbits the sun at the same time. This means that through out the year different hemispheres are expossed to different amounts of sunlight. We have the seasons because the sun is our source of energy, light and heat. The concentration of it's rays create the seasons. The tilt of the Earth means that the Earth lean away from the sun (Winter) or towards the sun (Summer) 6 months later.Spring and Fall occur in between these. The North pole always points the same way as the Earth revolves around the sun.

Did you know?
The Earth's movement around the sun causes the seasons, while many people believe that the temperature changes because the Earth is closer to the sun in summer and farther from the sun in winter but the truth is that the Earth is farthest from the sun in July and is closest to the sun at the beginning of January!

Summer: Summer is the warmest time of year in the Northern hemisphere. This is because the top part of the Earth is facing towards the sun for a certin amount of time not because the planet is closer to the sun.

Fall: The planets axis is directly in line with the sun in fall.

Winter: This is the season the south pole is getting all the light and the Earth is tilted away from the sun.

Spring: The Southern and Northern hesispheres are getting about the same amount of the Sun's energy.

__ How do the seasons affect the economy? __

The weather affects every aspect of our lives. From schedules to health it affects it all. We know that cold weather increases the cost of natural gas in winter and for the amount of storm damage we substain, are insurance costs are adjusted. The prices of everything we buy is affected by changes in weather, some times this is good, other times not.




 * Agriculture: **

Global warming has a significant impact on conditions affecting agriculture, including temperature, precipitation ect’. These conditions determine the growth of food products and the amount grown. If the weather is cold the food will not grow. If there is too much rain crops could flood and once again food wont grow, and when food doesn't grow it causes a shortage which causes increased prices on the item.

Western Canada's farmers lost about 3billion dollars after record rains flooded the country’s key crop-growing region in the spring of 2010. This left 10.5 million acres of land unplanned causing a serge in prices of Canada's top two crops; wheat and canol a.
 * Example: **

Forestry/wood is a very important resource not only our community but nearly the entire world. Trees provide many different utilities such as, your kitchen table, the paper in your binders, toilet paper, heat for your house, materials for your house and more. Forestry is affected by weather because different weather means different amounts of wood are available at different times. For instance, in Canada during the winter season it snows making things cold and wet. These factors make it harder to collect wood (wood is less available). This ultimately affects the prices of wood making it more expensive for buyers. In other parts of the world (Brazil for example) may not have these problems because the weather climate and is more suitable for trees to grow and be collected (more available).
 * Forestry: **

=** Fisheries: **=

=** Fisheries are another important resource to the world they provide food/*fish. Weather is the single most significant factor that affects wildlife activity. A change in atmospheric pressure or frontal activity (cold or warm) can bring any fishing activity to a halt. If fish activity stops prices for most would be almost unaffordable. **=

It affects harvest because every place has different weather patterns and temperatures. Also different plants have different needs for weather and temperature. Example Tropical fruits needs a warm temperatures and not as much water then an apple which needs more water, and cooler temperatures.
 * How does your global location affect harvest? **

Climate change will affect population distribution as people's livelihoods and lifestyles may depend on certain climates. For example, if an area that previously experienced snow becomes warmer then people who depended on snow may have to move to where snow is still falling (e.g. ski instructors, snow plowers, alpine tourist operators etc). Gradually in areas of Australia the climate is drying and warming. If farms become unsustainable where do these farmers move? Interstate? To greener pastures?
 * How dose your global location affect the population? **

If you're nearer to the Equator, it is warmer at sea level. The further North or South you go on the planet, the colder it becomes. In mountainous regions it is colder the higher you are. Some northern coasts are warmer than the inland areas because of the Jet Stream, which brings the warmer air and water both to the North and South poles. It just depends on where you are, and what season it is.
 * How does your global location affect temperature? **

__ The coriolis effect __ A phenomenon that occurs with the rotation of the Earth with free moving objects. These objects in the Southern hemisphere will contain a counterclockwise rotation and deflect to the left. It's the opposite in the Northern hemisphere. It's the change of dirsection of a moving object in a rotating system. The Coriolis effect is caused by Earth's counterclockwise rotations in weather systems. This effect makes objects looks like they are not moving in a straight line but they only look curved because of the Earth's rotation. Video: [] __ How the seasons affect other cities or countries __ Brazil has a more moderate climate and a much warmer climate then ours. They have a rainy season and a dry season. Also, season in Brazil are the reverse of ours: Spring: 22nd September - 21st December Summer: 22nd December - 21st March Autumn: 22nd March - 21st June Winter: 22nd June - 21st September The temperatures in the seasons as well as the wind currents affect the weather. Currents in the air affect the season change, for example, Australia is hot very well most of year due to the fact that they have tropical winds that bring hot air through out the region. Also, Australlia has very little tectonic movement, so little coldness or heat is added to the Earth and air. In Tokyo the seasons are similar to those in the US. The hottest months are July through September, with daily high temperatures of 80 degree’s Fahrenheit. The coldest months are January and February, with daily high temperatures in the up to 40s Fahrenheit. Tokyo is on an island the ocean increases the temperature. Tokyo is located on the ocean side of the island this causes winter to be mild with sunny days.
 * Brazil **
 * Sidney, Australlia **
 * Tokyo **

__ Haiti: How does their geographic location relate to earth quakes? __ Haiti is on western half and the Dominican Republic on the eastern half of the island of Hispaniola, here lies the edge of the Caribbean tectonic plate. The North American plate moves westward relative to the Caribbean plate. There are two major faults between at this point. The quakes seem to occur on one of the fault systems and this accounts for nearly half of the overall movement between the Caribbean and North American plates — around 7 millimetres per year, according to the US.

certain regions are more susceptible to earthquakes because of their constantly moving tectonic plates. Like Japan, who is surrounded by 5 tectonic plates, and Malaysia who is surrounded by 4. The most active zone in the world in the mid-Atlantic ridge, located very close to Haiti, which is why it is so susceptible to large earthquakes like the one it most recently had.
 * Tectonic plates: [[image:http://theorientalhotel.files.wordpress.com/2010/04/tectonic-plates.jpg width="334" height="153" align="right"]] **

Works cited:

[] []

tp://www.google.ca/imgres?imgurl=http://morris-photographics.com/photos/TheFourSeasons.jpg&imgrefurl=http://www.1iverating.com/item/ [] [] [] [] __[]__ __(image) []__