The survey that I created was for the Fifth Grade and covered the topic of water pollution. One of the reasons I picked the topic of water pollution, is because the world is depleting it's self of this natural resource and I think we need to do something about it. The other reason I picked this topic is because people litter in about every lake, stream, river, or ocean and they don't clean up after themselves.
The response to the survey for the most part was right and some got stumped. There were a few questions that I personally feel were not answered truthfully. The questions were well thought out and have good information.
I think we should have stiffer penalties for people that litter. Due to the people who litter in this world more people and animals are dying every day. I think the government should start a new committee that picks up pollution around the world.
Saturday, May 16, 2009
Friday, May 15, 2009
Wednesday, March 25, 2009
Simple machines
I did not know that simple machines could be used for so many things.I did not know that there were so many simple machines.
Saturday, January 10, 2009
The Madagascar Rosy Periwinkle
The Madagascar Rosy Periwinkle
The Rosy Periwinkle better known as the"Madagascar Rosy Periwinkle" has pink or white petals with a purple eye in the center of the flower. The plant has glossy, dark green oval shaped leaves which are 1-2 inches long. The plant grows 32 inches high when fully matured. The Rosy Periwinkle has a tendency to thrive in full sun and tolerate dry soils, but do poorly on wet sites. They do best in evenly moist soils of a typical annual garden. Their tropical ancestry dictates a need for warmth. Tropical and subtropical regions with a soil pH of between 5.6 to 7.8 is the plants preference.
The plant itself is mainly reproduced by seeds, although it can be reproduced by rooted cuttings. Flowers are visited by a variety of insects, including butterflies, bees, and beetles. But, only butterflies are likely to be the pollinators, because the structure of the flower requires a long-tongued insect for pollination.
In the 1950's it was found that the Madagascar Periwinkle appeared to have healing properties. Research of the plant uncovered two anti-cancer alkaloids. The compounds vincristine and vinblastine were discovered. These two compounds were found to be capable of inhibiting the growth of tumors in the human body. The vincristine alkaloid was found to be helpful in the fight against childhood leukemia. The vinblastine was found to be effective in the fight against testicular cancer and Hodgkin's disease. It has also been found that other alkaloids from the plant help with stablilizing blood sugar levels and helps lower blood pressure.
Information sites are:
www.herbs2000.com
www.wikipedia.org
www.ntbg.org/plant/
www.faculty.ucc.edu/biology-ombrello/pow/Madagascar_periwinkle.htm
Photo site:
www.dkublog.sulekha.com
The Rosy Periwinkle better known as the"Madagascar Rosy Periwinkle" has pink or white petals with a purple eye in the center of the flower. The plant has glossy, dark green oval shaped leaves which are 1-2 inches long. The plant grows 32 inches high when fully matured. The Rosy Periwinkle has a tendency to thrive in full sun and tolerate dry soils, but do poorly on wet sites. They do best in evenly moist soils of a typical annual garden. Their tropical ancestry dictates a need for warmth. Tropical and subtropical regions with a soil pH of between 5.6 to 7.8 is the plants preference.
The plant itself is mainly reproduced by seeds, although it can be reproduced by rooted cuttings. Flowers are visited by a variety of insects, including butterflies, bees, and beetles. But, only butterflies are likely to be the pollinators, because the structure of the flower requires a long-tongued insect for pollination.
In the 1950's it was found that the Madagascar Periwinkle appeared to have healing properties. Research of the plant uncovered two anti-cancer alkaloids. The compounds vincristine and vinblastine were discovered. These two compounds were found to be capable of inhibiting the growth of tumors in the human body. The vincristine alkaloid was found to be helpful in the fight against childhood leukemia. The vinblastine was found to be effective in the fight against testicular cancer and Hodgkin's disease. It has also been found that other alkaloids from the plant help with stablilizing blood sugar levels and helps lower blood pressure.
Information sites are:
www.herbs2000.com
www.wikipedia.org
www.ntbg.org/plant/
www.faculty.ucc.edu/biology-ombrello/pow/Madagascar_periwinkle.htm
Photo site:
www.dkublog.sulekha.com
Thursday, December 11, 2008
Monday, November 17, 2008
Virus
Viruses undergo genetic change by several mechanisms. These include a process called genetic drift where individual bases in the DNA or RNA mutate to other bases. Most of these point mutations are silent in that they do not change the protein that the gene encodes, but others can confer evolutionary advantages such as resistance to antiviral drugs.[65] Antigenic shift is where there is a major change in the genome of the virus. This occurs as a result of recombination or reassortment. I found this at Wikipendia
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