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Because the ink is a solid, silly putty is able to pick it up.

WHAT IS SILLY PUTTY AND WHAT ARE SOME OF ITS PROPERTIES

Intro
Silly putty is a toy that has been around for over 60 years that is made from sand, and refined from silicon. It was made in 1944, at General Electric, in Newhaven, CT when a man named James Wright added boric acid to silicon oil. Back then, it was unknown that this was the start to a big toy.

Silly Putty Properties/ what is Silly Putty
Silly Putty acts mainly as a viscous liquid, though it can have properties of an elastic solid, too. It acts mainly as a viscous or viscoelastic liquid, though it can have properties of an elastic solid, too. Silly Putty is made primarily of polydimethylsiloxane (PDMS). There are bonds within the polymer, but hydrogen bonds are the bonds that are between the molecules. The hydrogen bonds can be readily broken. When small amounts of stress are slowly applied to the putty, only a few of the bonds are broken. When a few bonds are broken, the putty flows. When more stress is applied quickly, some bonds break, causing the putty to tear. Silly Putty is a toy based on silicone polymers which display unusual physical properties. It bounces, but breaks when given a sharp blow and can also flow like a liquid.

SS_SP Pen-Pencil.png
Because the graphite from the pencil is solid, and stays on top of the paper, the silly putty can pick it up.
Meanwhile, the pen is a liquid that sinks in to the paper, so the silly putty cannot pick it up

History
It was invented in World War 2, when the U.S government needed the synesthetic rubber for things like airplane tires and, soldiers' boots, and gas masks. Silicon was available at the time, so the government asked many large companies the get their engineers to try and make a rubber substitute out of silicon. In 1944, at General Electric, in Newhaven, CT, one on the engineers working on the silicon experiment was a man named James Bond. One day, he was doing tests with silicon oil, and he added boric acid, resulting in a soft, rubbery compound, and a gooey substance that bounced. Samples were sent to engineers all over the world, but, unfortunately, unlike now, the result had no apparent use.



Silly Putty Uses
Silly Putty has been used to strengthen hand and forearm muscles, level the leg of a wiggly table, or even clean keyboard keys. It can remove lint from clothing and animal hair from couches. The astronauts in the Apollo 8 spacecraft played with Silly Putty when they got bored. Silly Putty was also used by the Columbus zoo in Ohio (1981). They used it to take hand and foot prints of gorillas. Silly Putty was also used to lift words and images off of newspapers.

Fun Facts
In 1949, (4 years after the war ended) a man named Peter Hodgson had an idea. His idea was to put the goo into plastic eggs and named it "Silly Putty. After borrowing $147.00, he did just that. He then began selling it as a toy, first to adults, then several years later to children. Silly Putty, the amazing, stretching, bouncing ball of goo, became a fad that has been around for more than 40 years.



Glossary
Polymer: A compound of high molecular weight derived either by theaddition of many smaller molecules, as polyethylene, or bythe condensation of many smaller molecules with theelimination of water, alcohol, or the like, as nylon.

Silicone:
any of a number of polymers containing alternate silicon andoxygen atoms, as (–Si–O–Si O–) n , whose properties aredetermined by the organic groups attached to the silicon atoms,and that are fluid, resinous, rubbery, extremely stable in hightemperatures, and water repellent: used as adhesives, lubricants,and hydraulic oils and in electrical insulation, cosmetics, etc.

Thixotropic
The property exhibited by certain gels of becoming liquid when stirred or shaken.

Hydrogen Bonds
a type of chemical bond in which a hydrogen atom that has acovalent link with one of the electronegative atoms (F, N, O)forms an electrostatic link with another electronegative atom inthe same or another molecule.

Citations

Internet
Ask Kids “Hydrogen Bonds”askkids.com. 2012. Web. 27 September 2012.

Ask Kids. “Polymers” askkids.com. 2012. Web. 27 September 2012.

Ask Kids. “Silicone” askkids.com. 2012. Web. 27 September 2012

Ask Kids “Thixotropic” askkids.com. 2012. Web. 27 September 2012

Helmenstine, Anne Marie “Silly Putty Chemistry” about.com. ­­2012. Web. 27 September. 2012.

“Silly Putty” wikipedia.org/wiki/silly_putty. 21 September 2012. Web. 27 September. 2012

Database

Make Homemade Silly Putty! “Oddesy” [serial online] October 2011; 20(8): 23. Available from: Science Reference Center, Ipswitch, MA. Accessed September 27, 2012

"Polymer." The Gale Encyclopedia of Science. Ed. K. Lee Lerner and Brenda Wilmoth Lerner. 4th ed. Vol. 5. Detroit: Gale, 2008. 3438-3442. Gale Virtual Reference Library. Web. 27 Sep. 2012.

Book
Jones, Charlotte Foltz. Mistakes That Worked. New York: A Doubleday Book for Young Readers, 1991. Print.

Wulffson, Don. Toys! Amazing Stories Behind Some Great Inventions. New York: Henry Holt and Company, 2000. Print.



Pictures
Think Geek. The original silly putty” ­­­­­­­­­­Think Geek, inc. Geek Net. 1999. Print.