Reasons for the Seasons

Guiding Question: How does the tilt of Earth’s axis affect the light received by Earth as it revolves around the sun?

Hypothesis: I think that when the light of the Sun is shown on the earth, it will spread out, so that while the North Pole is not getting light, the South Pole will.

When it comes to winter in the northern hemisphere, which areas get the most concentrated light? When it is winter in the norther hemisphere, it is summer in the southern, simply concluding in the fact that that hemisphere, the southern, receives the most concentrated light. The areas close to the equator receive the most light and are the warmest, whereas the south pole will receive the least amount of light and are the coldest. While on the other side, in the northern hemisphere there is much less light. There will be some close to the equator and barely anything in the north pole.

Compare your observations between the way the light hit the equator during winter and summer between the north pole and the equator In summer, the northern hemisphere is tilted slight towards the sun, therefore there is more light in the north pole and everywhere from the equator up. In the winter, the northern hemisphere is tilted slightly away from the sun, therefor there is less light. There is hardly any light in the north pole and not very much from the equator up.

If the squares become larger from the light on the grid, what can you infer about the heat of the light shining on it? If the square becomes bigger and larger, I can easily conclude that the heat that is bearing down on it is warmer, because of the fact that the light that is shining on it, it will get warmer and the grids on it will grow bigger.

According to your observations, which areas on earth are warmest? which areas are coolest? After my conclusions and basically my personal thoughts, I would probably say that the areas nearest the equator are the warmest, because no matter what season it is, most of the concentrated light will always shine in that spot.The coldest areas on this planet are probably the north and south poles. Because even in summer, hardly any light reaches there to warm it up.

What time of year would the toothpicks shadow be longest? When would it be shortest? I would guess that the time of year when the shadow is longest would be summer because that's when the most light would be shining on it, and because light can't break through barriers, it causes a shadow. Which means that the time of year when the shadow would be shortest would be winter because only a little light is shining on it.

How are the amounts of heat and light received in a square related to the angle of the suns rays? The more concentrated the sun makes its light, the brighter and straighter the squares will appear to be on Earth. The angle of the light will be causing the squares to appear stretched or faint when it comes at it from a slight tilt.

Use information form your observations to write an explanation of why the seasons change
Because of the Earth's orbit, the southern and northern hemisphere will change and alternately tilt to or from the sun. The light and heat that is reflected from the sun is what that, just basically causes the seasons. During the period that the Norther Hemisphere is titled to the sun, it's going to be either the Summer season, or the Spring season, whereas when it's tilted away it's either going to be the Fall season or the Winter season.

Noise Pollution Report

Roy Elal

7B

Noise Pollution Questions

Mrs. Medenica

Noise Pollution

What is noise pollution? Noise pollution is a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible. As with other forms of energy pollution (such as heat and light pollution), noise pollution contaminants are not physical particles, but rather waves that interfere with naturally-occurring waves of a similar type in the same environment. Thus, the definition of noise pollution is open to debate, and there is no clear border as to which sounds may constitute noise pollution.

Who or what does it affect? Noise pollution affects everyone, yet this problem is largely ignored by most people. Upon hearing loud noises and sounds, we might be irritated but feel at a loss to do anything about it. Noise pollution comes from various sources including traffic, airports, industries, factories and highly populated urban areas. However, these are not the only ways we can be affected by noise pollution. A loud musical event such as a rock concert, occupational noises, and large crowds are just as detrimental to humans, especially with repeated exposure. For example, the other day I watched a movie at the cinema in Usce with a couple friends, and the noise coming from the movie was loud when there was a war scene, or something similar, the chairs were shaking because they made the noise be so loud. Also once we came out of the movie we could barely hear ourselves talking. (Bad noise quality for Usce cinema!!)

What is the problem or issue with noise pollution? The main problem with noise pollution is hearing loss, or complete deafness. If noise pollution was never a problem, and it was able to be completely ignored, then it would not take a big part of our lives. Noise pollution is described as irritating, or unbearable to humans and occasionally to animals too (meaning not all animals are disturbed with the same sound.)

How are science and technology being used to help reduce noise pollution? As we understand already, Noise Pollution is already a great problem, and what some companies such as Apple and Panasonic, are trying to do, is soundproof your walls, windows, TVs, and speakers so you can play your loud music at parties without interrupting or disturbing whatever your neighbors are doing. Earphones usually do the trick if you are trying to listen to your music alone.

What limitations are coming up in the designs of Noise pollution proof designs? Although as we all know that noise preventing materials/technology is and would be selling huge on the market, there will be some defects. Even though you can have all the noise preventing materials for your doors, windows, or anything, your neighbors will still be able to hear your music, and noise proof earphones or headphones will do the same if you turn the volume up to high. So, although you can have the most soundproof home in the world, there is still a possibility that others will hear it from outside your home.

What is being done to stop Noise Pollution? As I already mentioned above, Apple and Panasonic whom have made materials to soundproof your home are trying to stop Noise Pollution by doing that. Except that I can only compare to the early 1900s where they had no soundproof materials, and their cars made a lot of noise, and so did most of their technology.