Tuesday, May 10, 2011

lab

When it is winter in the northern hemisphere which areas on earth get the most concentrated light? Which areas get the most concentrated light when it is summer in the Northern Hemisphere?

When it is winter in the northern hemisphere the southern hemisphere gets more light and when it is summer in the northern hemisphere the northern hemisphere gets more light. When it is summer in the northern hemisphere, the northern hemisphere gets more light.


COMPERE YOUR OBSERVATIONS OF HOW LIGHT HITS THE AREA HALFWAY BETWEEN THE EQUATOR AND THE NORTH POLE DURING WINTER AND DURING SUMMER?

When it is winter in a area it is halfway between of the north pole and the equator it is dark  and  there is a little light on it. 

If the squares projected on the ball from the acetate become larger, what can you infer about the amount of heat disturbed in each square?
There would be more heat in every square.

According to your observations, which areas on Earth are consistently coolest? Which areas are consistently warmest? Why?
The coolest areas are the ones that are south like the north pole and the warmest are the ones that are on the equator. 

What time of year will the toothpick's shadow be the longest?when will be the shadow the shortest?
The shadow will be the longest in fall and spring and the shortest in summer and winter.

How are the amounts of heat and light received in a square related to the angle of the sun's rays? 
The more directly the light hits the Earth the more rays it will receive and there will be more heat.


Use your observations of an Earth-sun model to write an explanation of what causes seasons?
The seasons are caused by the tilt of the earth and the rotational axis.

Conclusion: 
First my partner and I did not get the lab and had problems with it. We weren't the only ones to have problems; other groups too. So the seasons are caused by the earth tilt and the rotational axis and they depend from the position of the earth.
   
















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