Use a diagram that shows the positions of the earth and sun to explain the four seasons SPI 0607.6.6

Links verified 5/25/2024

1. Animation of Earth's yearly revolution around the sun - In order to illustrate how much sunlight different parts of Earth receive through the year, this model shows our planet much larger and closer to the sun than it actually is.
2. Do Shadows Change With The Seasons? - a worksheet to print and use with your class ]
3. How Does Sunrise and Sunset Change with the Seasons? - a worksheet to print and use with your class.  
4. Observe seasonal changes in the amount of sunlight reaching locations on Earth - This animation shows a satellite view of Earth every day for a year. Examine the sunlit side of the globe to recognize the continent of Australia and peninsulas and islands of Southeast Asia.
5. Reasons for the Seasons - includes some excellent illustrations
6. The Reason for the Seasons - Lesson plan from National Geographic. Students use polystyrene foam balls and light bulbs to investigate the sun's intensity on the surface of the Earth
7. The Reasons for the Seasons - This lesson plan is actually three activities in one to be conducted over a three-day period (one day in the fall, one in the winter, and one in the spring).  
8. Season - this encyclopedic entry from National Geographic includes a very good diagram
9. Seasons - find exactly when the seasons start for any year from 1902 to 2102 with this java applet
10. Seasons Reasons - What is the cause of the seasons? This explanation features an animation of the earth's movement during a year.
11. The Seasons - very good diagrams
12. What causes Earth's seasons? - Our planet's tilt dictates cycle of spring and fall
13. What Causes the Seasons? - from NASA's Space Place
14. Why Do We Have Seasons? - from the National Weather Service
15. Why does Earth have 4 seasons every year? - explanation from EarthSky

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