Eclipses, Seasons, and Tides | 4/29/19-5/3/19

Solar lunar eclipse diagram by Tomruen

Summary:

       The positions of the Earth, Moon, and Sun heavily determine eclipses, seasons, and tides. For example, both types of eclipses are caused when the Earth, Moon, and Sun are aligned. Solar eclipses are caused  when the Moon is in front of, and blocking the Sun's light from reaching Earth. This results in not being able to see the Sun, or the Sun being partially blocked by the Moon. A lunar eclipse is caused when the Earth is in front of the Sun which blocks the light from reaching the Sun. Thus, turning the moon to a gray color or a dark red color depending on if the Moon is in the penumbra (gray) or umbra (dark red). Another example of how the positions of the Earth, Moon and Sun effect things is with tides. Spring tides (when the difference between the height of the high tides and low tides is very great), which have very high tides are caused when the Earth, Moon, and Sun are aligned in any position. This can mean that the Earth is in between the Sun and Moon, or that the Moon is in between the Sun and Earth. Neap tides (when the difference between the height of the high tides and low tides is very small), which have very low tides, are the result of the Earth Moon and Sun form a right angle.

S&EP 2-Developing and Using Models:

       This week in science we both developed and used models. We developed models when discussing the positions of the Earth, Moon, and Sun and how they effected eclipses, seasons, and tides. An example of this is when we had to create a diagram of when and where the highest point of the Sun was during the two solstices. We used models this week two help us better understand the subject we were learning about. The models that we used were simulations. One example of this is for one of the seasons simulations. This simulation allowed to see how the Earth's longitude, axis, and position in terms of the moon determines what season it is and when the solstices occur.

XCC-Patterns:

       The pattern I determined this week has to do with locations of the Earth, Moon, and Sun and how they dictate eclipses and tides. The main pattern I found was how the Earth, Moon, and Sun being aligned is what makes a massive difference to eclipses, seasons, and tides. When they are aligned in the order of Sun, Earth, and Moon, a lunar eclipse and spring tide is caused. When they are aligned in the order of Sun, Moon, and Earth, a solar eclipse and a spring tide again are caused. The other pattern that I found was the whatever season it is in Northern Hemisphere, it is the exact opposite in the Southern Hemisphere. For example, if it is spring in the Northern Hemisphere, then that means that it is fall in the Southern Hemisphere.


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