Sugar Investigation
\Input Variable
Outcome Variable
Temperature
Time taken for the sugar to dissolve
Volume of Water
Number of Stirs
Amount of Sugar
Type of Sugar
The input variable we are testing is the temperature to see if the
time taken for the sugar to dissolve differs.
Prediction
I predict that when the temperature of the water increases, the time
taken for the sugar to dissolve in the water will be quicker than
dissolving at a low temperature.
This is because, the particles in a solid are very close together and
are in a fixed position. The particles in a liquid are very close but
are not in a fixed position causing them to flow over each other. So
when a solid is put into a liquid, the liquid particles collide with
the solid , causing the solid to get smaller and eventually dissolve.
As heating the water, the particles will move more and collide more
often with the sugar. This will cause the sugar to dissolve quicker.The
particles never disappear they just become so broken down that they
cannot be seen by the naked eye.
So I think , the sugar will dissolve faster , as the temperature of
the water increases.
Aim
My aim is to prove my prediction above.
Apparatus
Heatproof mats
Tripod
Gauze
Bunsen Burner
Thermometer
Stirring Rod
Measuring Cylinder-200ml
Beaker-150ml
Sugar cube-3.1g
Timer
Method
1. Set up the apparatus shown in the diagram .
2.Using the 200ml measuring cylinder measure out 150ml and pour it
into the beaker.
3.Heat the water to 30 degrees Celsius and turn the Bunsen off.
4.Put the sugar cube in the beaker and turn on the the timer.
5.Stir the water 3 times in one minute.
6.After it has dissolved stop the timer.
7.Record the results.
8.Repeat experiment with the values 40,50,60 and 70 degrees Celsius
The increase in temperature will therefore increase the rate of reaction. As this is the variable I am measuring I will not keep the temperature constant and therefore I will be varying it. Volume of water- if the volume of the water is increased there is more likelihood that there will be more collisions.
5.) One at a time, place your test tubes in the water bath and heat the first test tube to 25 , the second to 50 , the third to 75, and the last to 100 degrees c. Remeber to stir with your stirring rod every so often.
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(Why Does Alka-Seltzer Fizz in Water?) The fizzing that occurs is basically the same as baking powder and vinegar. (Why Does Alka-Seltzer Dissolve in Water?) The chemical reaction happens when molecules collide into sufficient energy to break old bonds and form new ones. (Walker and Wood)Some of these may take a while and others may take almost no time at all. (Walker and Wood) Alka-Seltzer contains citric acid and sodium bicarbonate which is basically baking powder. (Walker and Wood) I believe that the tablets will dissolve faster in warmer water, because increasing temperature also increases kinetic energy of the reactant molecules. When the rate of the reactant molecules increases the tablets will dissolve quicker. (Walker and Wood) When Alka-Seltzer dissolves it is caused by acid coming in contact with baking soda. (Why does Alka-Seltzer
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Overall numerous individuals think about Ernie Barnes due to his acclaimed painting entitled "Sugar Shack". This sketch was shown on the famous sitcom "Great Times" and was additionally used as a collection cover for the late however extraordinary Marvin Gaye's collection "I Want You". This depiction, be that as it may, was made in the mid 1970's yet never gotten any national or universal introduction until the "Great Times" TV arrangement began exhibiting it toward the finish of every scene and Marvin Gaye collection uncovered this exceptional bit of craftsmanship to a standard crowd. "Sugar Shack" is known for having a noteworthy impact in the formation of the "Dark Romantic" kind of craftsmanship. This class is frequently viewed as the "visual craftsmanship likeness the Chittlin' Circuit". Ernie Barnes even expressed in an uncommon meeting from 2008 that "The artistic creation transmits mood so the experience is re-made in the individual survey it. It demonstrates that African-Americans use musicality as a method for settling physical pressure."
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Probably some of the most pleasurable and enjoyable memories of a person has to do with sweets. When thinking back to birthdays, there is always the memory of the wonderful cake that mother beautifully made and decorated with frosting and glazes. A typical night out with dad can be transformed into a magical evening with a trip to the ice cream parlor. The end of a fantastic Thanksgiving dinner turns heavenly when a hot apple pie is brought to the table and topped with delicious, melting vanilla ice cream. A good wedding is never complete without the cutting of the splendid multi-level wedding cake, when the happy new couple gets to playfully shove and smear cake and white frosting into each other’s smiling faces. Everyone knows that as a child, the only good part about going to the dentist is getting the candy bar at the end of the visit. Why do some people get sick after eating too much suger? Some people do not even know that the abuse of sugar can lead to negative effects on your body. There is something strangely enjoyable and resplendent about the consumption of sugar. Why is it that sugar is so deliciously enjoyable and at the same time a food product that has many negative affects on people’s health?
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