Tuesday, 10 May 2011

Reasons for the Seasons 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?
During winter in the northern hemisphere it is summer in the southern hemisphe
re. The contenants that are part of the southern hemisphere is south america, southern Africa, Antartica, and Australia. So during winter in the Northern He
misphere it is summer in those countries. So areas that get the most consentrated light are the tropic of capricorn, tropic of cancer, and the equator.
Compare your observation of how hte light hits the area halfway between the equator and the North Pole during winter (step 6) and druing summer (step 9).
Sometimes the squares would look more like rectangles. The shadow on the toothpick will change according to where the earth is in its rotation around the sun.

If the squares projected on the ball from the acetate become larger, what can you infer about he amount of heat distributed in each square?
That there is more heat distribution and that it is probably closer to the sun .

According to your observations, which areas on Earth are consistently coolest? Which areas are consistently warmest? Why?
The Arctic and Antarctic and North and South Pole are the co
ldest places on earth due to the sun never fully stri
king these areas head on.

What time of year will the toothpick's shadow be longest? When will the shadow be shortest?
I think during summer it will be the longest and during winter it will be the shortest.

Use your observations of an Earth-sun model to write an explanation of what causes the seasons.
I think that the seasons are caused by the tilt of Earths axis away or toward the sun as it travels its year long (365 day) path around the sun.


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