Sunday, May 15, 2011

Reason for Seasons

Guiding Questions: 
1.What causes the seasons?
2. How does the tilt of Earth's affect the light received by Earth as it revolves around the sun?


Hypothesis:


Questions to answer:

Analyze and Conclude:

1. Observing: 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's winter in the Northern Hemisphere and when it's summer the Southern Hemisphere gets the most concentrated light. The areas who get s the most concentrated lights is the equator, tropic of cancer and the tropic of capricorn.


2. Compare your observations of how the light hits the area halfway between the equator and the North pole during winter and during summer.
The squares looks like rectangles and if the sun rotates and change location, the shadow on the toothpick will also change.


3. Inferring: If the squares projected on the ball from the acetate become larger, what can you infer about the amount of heat distributed in each square?
The heat distributed would be more and the reason for that would be that the sun is closer.
4. Inferring: According to your observations, which areas on Earth are consistently coolest? Which areas are consistently warmest? Why?

The constantly coolest areas are the Arctic, Antarctic , North and the South Pole because the sun never rises there. The warmest area on Earth is Syria but the places near equator are usually warm because equator is the closest area to the sun.

5. Predicting: What time of year will the tooth pick's shadow be longest? When will the shadow be shortest?
On summer it will be the longest and on winter it will be shortest.

6. Drawing Conclusions: How are the amounts of heat and light received in a square related to the angle of the sun's rays?

If the light hits the squares on a bigger angel that place would be hotter by the sun.
7.Comnicating: Use your observations of an Earth-sun model to write and explanation of what causes the seasons.

The seasons are caused when the Earth tilts. It gives sun to a place at a moment and the season change in different areas. When the sun moves around Earth it makes the seasons.






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