Dylan McFarland 9/15/14 Honors Chemistry Richardson Lab: Measuring the Density of Pennies Pre-Lab Questions: 1. The equation that relates density‚ mass‚ and volume is: density = mass / volume. 2. All substances have unique densities‚ so if you are able to find the density of a substance‚ you can properly identify it. 3. We measure irregular-shaped objects with the use of water displacement because it would be nearly impossible to get the exact measurements
Premium Metal Mass Density
Gold Penny Lab Purpose: The purpose of this lab is to convert a regular penny into a “gold” penny. Background: Chemistry is a branch of physical science that studies the composition‚ properties and behavior of matter (www.acs.org). Sodium hydroxide is considered to be a strong base because it breaks up in water. When mixed with certain metals it produces potentially explosive hydrogen gas. Many alchemists believed that doing certain chemical reactions that they would be able
Premium Chemistry
Title: Penny Lab Experiment By -Objectives To determine how soap affects the surface tension of water. -Hypothesis In this experiment the hypothesis was that soap was going to affect the surface tension by weakening the bonds and allowing less water on the penny. -Materials * Penny * Beaker x2 (One containing soapy water the other containing pure tap) * Paper towels * Lab review sheet * Pencil * Pipette -Procedure First we picked who would drop the water onto
Free Scientific method Hypothesis Theory
the Dust Bowl? In the 1930’s many people were devastated by vast dust storms. Many people suffered from them in Kansas‚ Colorado‚ New Mexico‚ Oklahoma‚ and Texas and some people even died. In the fiction book Out of the Dust‚ an Oklahoma girl named Billie Jo tells her story on how she survives the Dust Bowl with the loss of her mother. Billie Jo also describes the pain she is going through having her beloved piano destroyed by a dust storm. Lots of people think differently on how the Dust Bowl
Free Great Plains Dust Bowl Texas
Ha’penny (I wrote it on my own…copy at ua own risk) Alan Paton South African author and anti apartheid activist.ha penny is taken from his short story collection tales from trouble land Alan Paton‚ the author works in a reformatory. Reformatory is an institution for reforming young offenders especially minors. There were 600 boys at reformatory; about 100 were from 10-14 yrs of age. The department expressed the intension of establishing a special institution more like an industrial institution
Premium English-language films Sibling Welfare
rid of the penny because they’re worthless. Removing the penny won’t hurt charities‚ American History will not be forgotten and making pennies is a waste of time. You can’t use pennies for a lot of things nowadays. The whole point of having the penny is to spend it‚ however‚ the penny itself can’t be spent. Pennies cost more then what they are worth. Yearly it costs the government 134 million dollars to produce 80 million dollars worth of pennies. The U.S had a half penny and when we
Free Abraham Lincoln United States President of the United States
2014 Atkins A Penny for Thought The great debate of the penny is an intriguing and quite controversial one. While some may feel the penny is worthless and not needed‚ others argue passionately that the penny is worthy of great praise and deserves to be kept around. It is not only a great American tradition with great sentiment but it is also functional and extremely convenient. Along with unequivocal opinions‚ statistics are also available to prove how practical and favorable pennies really are.
Premium Federal Reserve System
the production of pennies‚ because the pennies have become useless in this economy today‚ makers of pennies could be doing more useful jobs‚ and the bill would simply decrease the use of the penny. The time has come to abolish the outdated‚ almost worthless‚ bothersome and wasteful penny. We always have those couple pesky pennies that’s we have to deal with day by day because we can’t get rid of them. Now a day you can’t buy anything with a penny or even a handful of pennies like you use to be
Premium Abraham Lincoln Federal government of the United States Lincoln Memorial
Susan Wells Block 2 Janurary 20‚ 2015 Out of the Dust By Karen Hesse Out of the Dust is about a young girl named Billy Jo Kelby who is living in the dust bowl with her Mother‚ Father‚ and unborn brother Franklin. Billy Jo is going through a rough time right now because one night a fire broke out and burned her‚ her momma‚ and her unborn brother. Billy Jo’s mother died giving birth to her baby brother and soon after that when her Aunt came to get the baby‚ he had passed away. Now it is
Premium Great Depression Great Plains Dust Bowl
The Dust Bowl was the name given to the Great Plains region devastated by drought in 1930s depression-ridden America. The 150‚000-square-mile area‚ encompassing the Oklahoma and Texas panhandles and neighboring sections of Kansas‚ Colorado‚ and New Mexico‚ has little rainfall‚ light soil‚ and high winds‚ a potentially destructive combination. When drought struck from 1934 to 1937‚ the soil lacked the stronger root system of grass as an anchor‚ so the winds easily picked up the loose topsoil and swirled
Premium Dust Bowl Great Depression Great Plains