Sun

1. The Southern Hemisphere gets the most concentrated light, and when its summer in the Northern hemisphere, the Northern hemisphere gets the most concentrated light.

2. Then the Southern hemisphere gets little or no light, so it winter there, while it is summer in the North.

3. There would be less heat because it would be more spread out and less concentrated since it shines over a bigger area.

4. The very middle of the North and South poles are the coldest because the sun almost never shines there, and if it does, only the very edge. While the equator is the hottest because it gets the full blast of the sun all year round.

5. When it is winter in the Northern hemisphere the toothpick shadow would be longest, while when it was summer in the Northern hemisphere the shadow would be shortest.

6. If the sun is directly above a square, it gets the most heat and light, while when its toward the south or north of the square, the heat and light received is less.

7. Seasons are cause when the sun is shining at different parts of the world far and close to a certain place. When the sun rays are shining closer to a certain place its spring then summer, but as it goes farther away is fall and winter.
Use your observations of an Earth-sun model to write an explanation of what causes the seasons.