reflection on the wave unit (how does the use and study affect social well-being)

In this unit I learned about 3 types of waves (sound waves, electromagnetic waves, seismic waves) I learned that sound waves can't travel through outer space because there is no medium. Another thing I learned was how waves travel and how they work. All waves go through a medium and they carry energy. The electromagnetic waves (ultraviolet, X-rays, infrared, microwaves, etc.) these are some of the electromagnetic waves. For next time I would do more of electromagnetic waves. I learned more things and some of them I didn't know before. Creating the seismograph was vary fun.

For and against food irradiation

Requiring food all to be irradiated	Permitting but not requiring	Banning food irradiation
It can harm people’s health  (con)	We have choice if we want irradiated food or not irradiated food (pro)	It is good because you don’t get harm ( pro)
That it can stay fresh longer time(pro)	Long-term we can compare the effects of irradiated food and not irradiated food (pro)	The food is not fresh it can rot easily (con)
We don’t have choice if we want irradiated or not we can only have irradiated(con)	It kills nutrients (con)	It doesn’t kill bad bacteria (con)
If we irradiated there will be more control (pro)	consumers have not been educated to compensate for irradiation-induced losses elsewhere in their diets(con)
It kills bad cells (pro)	Irradiation can kill insects and pests infesting foods such as grains and flours without leaving chemical residues(pro)
it kills nutrients (con)	You may get affect it or not (pro and con)
People get affected by irradiated food (con)

irriated food

Blog post

Irradiated food

Why do we irradiate food? We irradiate food to preserve it and make it safer for use. Many people around the world get sick from contaminated or spoiled food. Every fruit or food that has been irradiated must be labeled with the label of radiation. On one hand irradiation is very helpful, but on the other it can be harmful because some nutrients of the food are being lost. Radiation kills living cells. People don’t die from irradiated food, but they could get cancer from it if they eat it every single day of their life. We still don’t know all the consequences the irradiation could have on human’s health on long term. There still has to be done a lot of research.

science report (noise pollution )bibliography

"google immages ." google immages . google , 1 Apr. 2011. Web. 1 Apr. 2011.
     <http://images.google.com/imgres?imgurl=http://www.topnews.in/files/
     Noise-Pollution.jpg&imgrefurl=http://www.topnews.in/
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     ghX48gbKPRBAPM:&tbnh=118&tbnw=118&ei=Er2VTd-eBYbesgaPp6XGCA&prev=/
     search%3Fq%3Dnoise%2Bpollution%2Bpictures%26hl%3Den%26safe%3Dactive%26biw%3D1116%
     26bih%3D441%26gbv%3D2%26tbm%3Disch0%2C399&itbs=1&iact=hc&vpx=853&vpy=17&dur=1031&
     hovh=225&hovw=225&tx=167&ty=128&oei=_LyVTfzzNsPGtAagmozPBQ&page=2&ndsp=13&ved=1t:
     429,r:6,s:10&biw=1116&bih=441>.

	"Noise Pollution Clearing House." No noise. N.p., 29 Mar. 2011. Web. 29 Mar.      2011. <http://www.nonoise.org/>.	"Noise Pollution: Sources, effects and control." Noise pollution. N.p., n.d.      Web. 29 Mar. 2011. <http://www.legalserviceindia.com/articles/      noip.htm>.