review day for test

Today in class we went over possible test questions and helped pick out which ones would be fair to put on our test for Friday. Some of the questions were things I've never heard of, but most of them were things we know. We didn't finish all of the questions and I think we stopped at map distortion and we also did some examples for finding time zones. One thing we answered was where's the prime meridian, which is at 0 degrees longitude, and what it is on the opposite side of it, which is the international date line at 180 degrees longitude. This brought up the antipode thing that we had to do for the questions on the last blog. Antipode is the exact opposite spot from a point on Earth, and like 70% of places' antipodes are not on land because the Earth is mostly water. Next, we did what is the science of mapmaking, which is called cartography, and why do we use maps (navigation). After that, we talked about the four types of distortion of maps because the Earth is round and maps are flat. There is the distortion of a shape of an area, size of an area, distance between points, and directions between points. With distortion, there is absolute and relative location. Absolute location is the exact location of a point, using longitude and latitude, on Earth and relative location is describing a location by naming its surroundings. The last thing we talked about was time zones and how to tell the time in different areas based on what time it is in Bel Air. There are 24 time zones and every 15 degrees equals one hour ahead or behind. For example, right now in Bel Air the time is 9:21 pm. If I wanted to find out Chicago's time I would go on a map and go back or forward every 15 degrees until I get to Chicago. On my map, I only moved back 15 degrees once, so Chicago is only one hour behind, which means it is 8:21pm. I think this review day was good and I think I am going to do good on my test because I got everything right today.