PRESENTATION OUTLINE
The earth is tilted, it's not at a perfect angle. The earth tilts at 23.5 degrees. This tilt is also the whole cause of the seasons.
EVIDENCE: If we wouldn't have the tilt of the earth, we would not have seasons at all.
Direct and indirect light is how much the sun distributes light to our little blue planet. direct light is light that comes directly at one spot, and focuses more, therefore more energy goes to that spot which means more heat. Indirect light is when the light is tilted, making us have less energy, less heat
EVIDENCE: During the angle light lab, beans were used to represent the suns energy. The beans were put in the diameter of direct light, then those exact number of beans were moved to the light at an angle, the beans did not fit.
There is a difference in the hemispheres because in the northern hemisphere, a season like summer would occur, while in the southern hemisphere would occur, it would be the opposite
EVIDENCE:tilt toward and away from the sun. Summer in the northern hemisphere begins at June and September, but in the southern hemisphere, summer begins at November through march.
Each season occurs according from how the earth is tilting to the sun. When the axis points towards the sun, that means we get the most heat. But when the axis points the other direction, we get the least heat. Thus, the seasons.
EVIDENCE: We are in Illinois, meaning we are close to the hemisphere and we get all the seasons, so when summer happens, we get direct energy, when spring occurs (also with fall),we only get part of the energy, when winter occurs, we only get indirect energy.
The very common misconception that causes the seasons is how close the earth is to the sun. But that has nothing to do with the seasons.
EVIDENCE: When summer begins, the axis tilts towards the sun, when winter begins, the axis points away from the sun. During winter, the earth is the farthest away from the sun, 92 million miles. During summer, the earth is farther, 152 million kilometers.
