This extra credit work will only be given to 3rd quarter grades.
For this week I want you to visit the online tools page first to find the interactive periodic table (it's near the bottom of the first column) or go directly to ptable.com. Select one of the many elements, click on the tab that says "photos" and give us a brief talk about what is so cool about the element you have chosen. Tell us about what it is used in, etc. DON'T CUT AND PASTE! use your own words.
This extra credit work will only be given to 3rd quarter grades.
Russell Sandoval
1/30/2012 06:59:40 am
I picked insteinium (Es) because of its silver colered subject it is very different
Mr. Casey
1/30/2012 07:26:23 am
More!
jacob bellaire
1/30/2012 07:19:24 am
i picked krypton because superman keeps trying to get into my house. glows when a high voltage electric current touches it. it also has high thermal conductivity.
jacob bellaire
1/30/2012 07:20:22 am
it glows
haley james
1/31/2012 02:12:39 am
Nice won Jacob That's a very good one but i would choose plutoium because it's mickey mouses pal. You can't beatit.
Mr. Casey
1/30/2012 07:26:00 am
Okay, nice start, but we need more than this. Gives us some things these elements are used for, or??? Give us more for credit!
Jessica Leasure
1/31/2012 08:38:53 am
I picked Silicon- Si because it seemed like something interesting to learn about. Silicon is metalloid, and it's less reactive than carbon. Silicon is the 8th most common element in the world. Also, it is a solid, but has a very high melting point. Another thing I learned was 90% of the Earth's crust is composed of silicate minerals! Silicon looks almost like tin-foil but with less wrinkles.
John C. Hirsch
1/31/2012 11:35:26 am
I chose Gold, or Au because I believe that it is a very interesting substance. I find it amazing that people think diamonds are an old piece of jewelry and think gold is special but some do not realize that it was placed on our planet, and diamonds are made by carbon that was already on our planet. It is also intriguing that it can be compleatly pure (24k) and yet its atoms are extreamly dense but how the substance is put together with out a different substance it will bend easily. Our planet produces enough gold to make a cube with each side being 4.3 meters (about 14 feet), and this is when the crust moves or our earth erodes and the gold comes to sight. So next time you have on a gold ring, think about how you are wearing part of a star.
Russell Sandoval
2/2/2012 06:43:39 am
i picked dubnium because to be its very differnt because it doesnt have a shape or color. Its from the D block on the chat. its life lasts more or less of 28 hours.
Cameron Cody
2/2/2012 09:56:41 am
I chose the element Chromium because of it's incredibly reflective and shiny surface. The main thing it is used for is metallurgy, most people would know as chrome plating.
Maria Tucker
2/4/2012 04:09:28 am
I chose Copper (Cu) Its red- orange metallic luster. It is soft and malleable. Used to conduct heat and electricity or building material.
Hayley Hawkins
2/7/2012 08:16:58 am
I chose the element Caesium-Cs. It is a silvery gold metal. What is unique about this element is that it is one of very few that turns into a liquid when at room temp. It melts at of 28 °C (82 °F). It is very soft and highly reactive. Since it's so reactive, its know as hazardess material.
Lu Marlow
2/7/2012 08:35:57 am
I selected Mercury because it was known to the Greeks as a type of blam/cream. A lot of times they would use it as makeup which would deform faces. Mercury was used in thermometers, barometers, some pesticides, batteries, fluoresent lamps, float valves, and even some electrical switches. We use mercury for most meter objects because it doesn't expand, even in temperatures anywhere from -40 to 100 degrees celsius. It's element symbol is Hg because it refers to hydrargyrum. Translated to Greek means "silver" and "water". Also, when frozen and heated, thermometers with Mercury don't break where as a thermometer with water or another liquid would. Recently, the Phillippines Department of Health ordered all Mercury contained thermometers banned because of Mercury's toxic effects. Some effects are brain damage, kidney damage, lung damage. Including a result of deficiency to your vision, speech, or hearing. However, scientists have figured out a replacement for Mercury called "galinstan" which is a combination of alloys. Comments are closed.
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