Penny And Dime Lab Report

Next, we determined the mass of the penny by placing it on a balance. The mass of the penny was 2.47 grams. Afterwards, we placed the penny in a beaker filled with 20 mL of 6 M HCl. In the end we put the beaker in the fume hood and allowed it to sit overnight. During day two of the penny lab, we removed the penny skin from the beaker using tweezers.

Objectives In this lab, you will investigate the percent composition by mass of CO2 in Alka-Seltzer® tablets. In addition, you will find out how much CO2 is released into the atmosphere as 2 Alka-Seltzer® tablets chemically react in vinegar. Procedure 250-mL beaker 100-mL graduated cylinder Scale 60 mL of Vinegar 2 Alka-Seltzer® tablets

Unknown number of 1 oz. silver coins in sealed plastic rolls Unknown number of silver coins in vacuum sealed sheets, unknown number of sheets Unknown number, denomination or weight of gold coins Estimated value $10,000 (2) 1 pint mason jars of pennies one full one half full (2) 1 pint mason jars of nickels one full one half full (3) 1 pint mason jars of dimes two full one half full (2) 1 pint mason jars of quarters one full one half full Unknown

Then I dropped 5 drops of water onto the toilet paper and then added pennies until the paper broke. I repeated this 10 times for each brand. My hypothesis for this test was that Quilted Northern would hold the most pennies because it was one of the thickest toilet papers. For the dry test, what toilet paper would hold the most pennies when dry, I repeated what I did for the wet testing but did not put water onto the toilet paper. Instead, I placed a laundry cup taped to a Jenga block in the middle of the piece of toilet paper.

Have you ever wondered how pennies have changed over the years? The penny has undergone several design changes, and composition changes – some pennies are made purely of copper, some have nickel, tin and zinc. If we

How does the type of dissolvent in the water affect the number of drops that can fit on a penny? We will attempt to find the answer to this question using the hypothesis “If we use salt water solution, then there will be more drops on the penny. ” We will use the materials salt, sugar, lemonade mix, flour, a beaker, a pipette, paper towels, a stirring rod, a graduated cylinder, and some tap

The penny costs more than it is worth. Millions of dollars are going to waste into producing them and it can just add the money up. The cost of producing and distributing one pennie is 2.4 cents(Sommer). Every penny that is made, taxpayers lose money.

Pennies aren't significant. A quote from the text, “Pennies take up too much space on our dressers at home,” (Sommer, Paragraph 3) This text basically tells the reader that pennies are significant to people's homes. The readers can also infer that the penny is a waste of space because of their worth.

Also, the penny is too heavy and takes up space. The government has been trying to ship pennies to military bases in foreign countries.(Source 2) They have been doing this because they need to use currency to buy food or merchandise. Pennies are said to take up too much space in people’s homes like dressers and cabinets.(Source 2) This was said during a speech during a discussion to remove pennies or to keep them.

Also, the images on the penny have changed over and over giving everyone something new to look at. For example, in the text the author suggests, “The first pennies, minted until 1857, were very large-larger than our modern-day quarter and had different images of the Statue of Liberty on the front. Several other versions of the coin were minted before finally producing the familiar Lincoln penny in 1909. Since then, ten varieties have been minted, mostly because of the changes in metal content” (Story, para 2). According to the evidence, the images on the penny continue to change due to production costs.

In the source “Penny Wise, or 2.4 cents Foolish?” It specifically states,”A number of countries, including Australia, New Zealand,Brazil,Finland, the Netherlands, Norway, Sweden, Switzerland and Britain,have already dropped their lowest- denominated coins, without dire consequences. ”This evidence is saying that many other countries have given up their lowest coin and that coin for the United States is the penny worth one cent. The evidence demonstrates that the United States needs to get rid of the penny as well, even if the vote on it isn’t high, the people needs to have this coin gone because in the long run, the United States won’t have anymore money because of making this money and it costs more than what it’s even

In Source #2, the text states "Pennies are "too heavy and not cost-effective to ship,”" You may ask, "what does cost-effective mean? Well cost-effective means "producing desirable results without costing a lot of money" (Source #2). As we can see, they cannot produce pennies without more money than the pennies

Next, there is mass this contains 5 sections in it these are: • challenge

On our paper we predicted the amount of pennies that could fit in the boat before it sank. We tested the boat in the water and added pennies one by one. We then calculated the mass of pennies that fit in the boat and the density of it. The purpose of this Lab was to make a boat that holds as many pennies as possible and understand how to calculate

Measurements, Calculations, and Significant Figures Measurements, calculations, and significant figures are vital mathematical terms used to understand the basic concepts of physics. Knowing how to properly make measurements and apply the necessary calculations to obtain accurate answers will surely prove beneficial in physics, but having that knowledge will also help you throughout your entire life. Therefore, it is important to understand the processes and numbers involved when using measurements, calculations, and significant figures. Measurements are used to identify the specific characteristics of an object, such as length, size, and amount. One must use the proper measuring device, depending on the conditions of the experiment and