Here Comes the Sun
Earth Science, Jacob Hootman
Facts about Earth Science - Section 1
- The rotation around the axis causes day and night on earth.
- Earth’s rotation on its axis is the spinning that the earth undergoes. It takes one day, or 24 hours, for the Earth to rotate once.
- Earth’s revolution around the sun is it’s orbit around the sun. It takes approximately one year, or 365.25 days, for one revolution to occur.
- The two reasons we have seasons on the earth is the tilt of the axis and the revolution around the sun.
- The difference between seasons in the northern and southern hemispheres is that they are complete opposites. For example, if in the northern hemisphere, the season is winter, in the southern hemisphere, the season will be summer.
- The equator does not experience seasons because it is always in the middle of the northern and southern hemispheres.
- The difference in the length of days between our summer and winter months is that the summer days have much more daylight, whereas the winter days have much less.
- The winter and summer solstices are the shortest and longest days of the year, respectively, and they occur on December 21st, and June 21st, respectively,
- The spring and fall equinoxes are the two days of the year during which you have a period of daytime and nighttime of almost equal duration. This occurs on March 20th, and September 23rd, respectively.
- At the north pole, it remains day from the beginning of spring to the beginning of fall. At the south pole, during summer in the northern hemisphere, it remains night.
- The days at the equator are approximately 12 hours long because the equator is never tilted towards or away from the sun.
- If the Earth was not tilted on it's axis, we would have it always be summer on the equator, and winter on the other sides.
Facts about Earth Science - Section 2
- If the earth was tilted to a greater degree, we would have more severe and longer lasting seasons.
- An asteroid event could hit the earth with such force that our axis moves slightly, or another forceful natural disaster, such as the Tsunami in Japan, in 2011.
- If we were closer to the sun, seasons on earth would be different because of a slightly higher temperature always occurring every season.
- The seasons do effect how shadows move. For example, if the earth's tilt gives you a shadow 12 feet long in summer, it will give you a shorter shadow in the winter.
- I believe that animals and plantlife understand the seasons through how the experience it. For many animals, the seasons mark when you can stock up on food and find food to eat, and when you need to hole up in your den. For the plants, the cold temperatures of winter will kill your leaves, so you need to prepare for said death.
- Earths seasons would move faster and be more forceful. You would have very hot summers and very cold winters.