Find out what affect the change of concentration in the sucrose solution
has on the mass of a potato chip.
Introduction
In this experiment I will be taking five similar potato chips and
putting them into different sucrose solutions (each one with a
different concentration) and observing the effect that each
concentration has on the size of the potato chip.
Aim
I am doing this investigation in an endeavour to find out what affect
the change of concentration in the sucrose solution has on the mass of
a potato chip.
Background information
Ø Osmosis is the movement of water molecules across a partially
permeable membrane from an area with high concentration to an area
with low concentration
Ø The opposite of osmosis is active uptake, this is when water moves
from an area with a low concentration to an area with low
concentration. An example of this would be a root hair cell getting
water from its surroundings.
Ø Partially permeable membranes have holes in them. These holes are
the size of just one water molecule.
Ø Water can pass through the membrane in both directions although if
there is a higher concentration of water in the solution rather than
the potato chip, the potato chip will receive water molecules and will
increase in size.
Ø Some membranes in plant and animal cells allow only certain
particles to pass through them. They are partially (or selectively)
permeable.
Prediction
I predict that as the concentration of the sucrose solution decreases
the mass of the potato chip will increase. I think this because a
lower sucrose content would mean a higher water content and therefor
as osmosis takes place the water in the solution will move from the
solution to the potato chip and as a result increasing the mass of the
potato chip.
I also predict that the concentration of the solution and the mass of
the potato chip will be directly proportional to each other.
Variables
In this investigation I will change the concentration of the solution
and I will be keeping the size of the potato and the temperature of
the solution the same.
Equipment
Below is the apparatus that I will be using for my investigation.
Ø Stop watch
Ø Cutting tile
Ø Small knife
Ø Measuring cylinder
Ø Distilled water
Ø sucrose
Ø Potatoes
Ø Weighing scale
Ø Potato cutter
Ø Cling film
Ø Ruler
Method
Ø Firstly I will cut five pieces of potato.
Ø Then I will peal the potatoes with the knife.
Ø After this I will measure and weigh them to ensure that they are
equal.
Ø Subsequently I will put 40ml of my solution in each of the testubes.
Test tube one will have 10ml of distilled water and 30ml of sucrose.
The book “No Matter How Loud I Shout” written by Edward Humes, looks at numerous major conflicts within the juvenile court system. There is a need for the juvenile system to rehabilitate the children away from their lives of crime, but it also needs to protect the public from the most violent and dangerous of its juveniles, causing one primary conflict. Further conflict arises with how the court is able to administer proper treatment or punishment and the rights of the child too due process. The final key issue is between those that call for a complete overhaul of the system, and the others who think it should just be taken apart. On both sides there is strong reasoning that supports each of their views, causing a lot of debate about the juvenile court system. Edward Humes follows the cases of seven teenagers in juvenile court, and those surrounding them.
In 1776 the United States of America became a great nation, free from Britain's rule. We became a nation full of freedom and opportunity, symbolized by many great icons. The Statue of Liberty, the Liberty Bell, this great nations capitol, the District of Columbia, and the greatest of these icons, our American Flag. Our flag symbolizes to the world our strength, determination, and the rights and freedoms of our people. The very sight of it has given men the courage and willingness to sacrifice their own lives in order to protect what it symbolizes. But where did it come from? For more than a century it has been disputed by historians that the story of Betsy Ross, a widow from Philadelphia could be given the honor of handcrafting the first American Flag. So is it fact or a delightful fable that has weaved its way in as part of our American history?
CL-, as the ions of H+ and OH- react to form H2O. These spectator ions
“Land of the free and the home of the brave.” This line has represented the United States for decades. These words were captured in The Star Spangled Banner by Francis Scott Key and since 1913, the United States has adopted The Star-Spangled Banner as its national anthem. We have used the Red, White, and Blue as one of our nation’s symbols. It has fifty stars, to represent the number of states we have in our Union. The military pledges its allegiance to the flag and the country which it represents at all costs. We are the land of the free and the home of the brave, and we are proud to show it.
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It is important however to note that the NH4 and K ions are still in
First I would like to include some information about our american flag and how it came about. In the British colonies of North America before the Revolution, each of the 13 colonies had its flag. On Jan. 2, 1776, the first flag of the United States was raised at Cambridge, Mass., by George Washington. Known as the Grand Union flag, it consisted of 13 stripes, alternate red and white, with a blue canton bearing the crosses of St. George and St. Andrew. Congress, on June 14, 1777, enacted a resolution “that the Flag of the United States be 13 stripes alternate red and white, that the Union be 13 stars white in a blue field representing a new constellation.” On Jan. 13, 1794, Vermont and Kentucky having been admitted to the Union, Congress added a stripe and a star for each state. Congress in 1818 enacted that the 13 stripes, denoting the 13 original colonies, be restored and a star added to the blue canton for each state after its admission to the Union. All of the states and territories of the United States also have their own flags. Betsy Ross created the first flag. Betsy would often tell her children, grandchildren, relatives, and friends of the fateful day when three members of a secret committee from the Continental Congress came to call upon her. Those representatives, George Washington, Robert Morris, and George Ross, asked her to sew the first flag. This meeting occurred in her home some time late in May 1776. George Washington was then the head of the Continen...
There have been the fights for our freedom and fights against each other. Through all of the battles, the American flag stood strong and proud. There have been many sacrificed deaths for our freedom. The flag stands for every person that ever gave up their life for the good of our country. The people that were at the front line standing proud for our nation are the real heros. That is what the flag really stands for. The everyday citizens that continue to fight while we continue our normal lives. Many people may not think of the American flag as much but it stands for so much more than just what our eyes can
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Investigating the Effect of Sucrose Concentration on the Conversion into Glucose and Fructose by Invertase
There is much controversy surrounding the idea of patriotism and the iconography of the American flag in today’s society. Some believe patriotism is simply the act of supporting the decisions of the leaders of the country. Others say, to be patriotic, people should be outspoken and voice their oppositions to what is going on in the government. Opinions also differ on the idea of what the American flag represents. One opinion of the flags representation is that the flag represents our history, and the formerly mentioned idea of patriotism. Others believe the flag also represents our history as a nation, but these beliefs focus much more heavily on the negative aspects of our history; such as slavery and other injustices carried out by our nation. These people often believe we should find a new iconography for our country’s ideas of patriotism. As Barbara Kingsolver states in “And Our Flag Was Still There,” “Patriotism seems to be falling to whoever claims it loudest, and we’re left struggling to find a definition in a clamor of reaction” (Pg. 1). Therefore, every American’s duty is to define patriotism amongst the clamor of reaction, recapture the American flag’s representation, and create a new icon for the flag.
...o captivating. Additionally, it does make an extensive number of appearances at various ceremonies and great events, such as the opening ceremonies of sporting events and national holidays such as Independence and Memorial Day. However, “The Star Spangled Banner” embodies a much broader and more abstruse, cryptic connotation. It illustrates America’s attitude of perseverance when facing seemingly indomitable adversities or unachievable ambitions. It represents America’s unfaltering faith, traditional values, and ethical laws that have come to characterize America’s individuality. It signifies America’s past, a historic reminder that unites the people and instills, in their hearts, a profound sense of patriotism and glory. Most of all, “The Star Spangled Banner” symbolizes the truth of what America truly means–“the land of the free and the home of the brave”.
The dilemma of juvenile incarceration is a problem that thankfully has been declining, but still continues to be an ethical issue. The de-incarceration trend has coincided with a decrease in crime. It is hopeful that our nation is changing the approach to the treatment of juveniles in the criminal justice system. It means we know what to do and what is working, now just to follow through and continue the change to creating a juvenile justice system that is truly rehabilitative and gives youth tools to be able to be positive members of
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