The Effects of Colours and Radiation on the Rate of Cooling of Tap Water
Aim: To investigate radiation and the rate at which it cools ordinary
tap water according to the colour of insulation.
Apparatus needed:
· Several Standard 250ml glass beakers (to be replaced after each
test)
· A kettle (to heat the water)
· A square of bubble-wrap (to sit under the beaker to insulate it from
the floor)
· A Thermometer
· A stopwatch
· Safety Goggles (due to handling very hot water)
· The materials I will use to encourage radiation are:
Silver Foil
Black Paper
White Paper
Method:
1/ After setting the equipment up, as shown. Apply safety goggles and
use the kettle to boil water
2/ Pour 250ml of boiled water carefully into the beaker.
3/ Once the temperature of the solution has reduced to 80â—¦c, begin
timing.
4/ At each minute record the new temperature of the water in â—¦c.
5/ Record each minute for 10 minutes. Repeat steps 2-5, three times
and take the average temperature found.
6/ Repeat 1-5 using a new covering.
* Before I carry out a test with a covering I must first carry out a
control test using no covering. I will then be able to compare
just how much colour and radiation makes a difference based upon a
normal template.
* I will record my results on this results table:
Time
Temperature Readings
Control
Black
White
Foil
1
2
3
1
2
3
1
2
3
1
2
3
Start Temp
80
80
80
80
80
80
80
80
80
80
Hypothesis- Water will evaporate the quickest because there isn't heavy sugars in the drinks slowingdown the evaporation process.
An Investigation Into How the Thickness of Insulation Affects the Time a Drink Takes to Cool Down
Procedure: A sand bath was set atop a hot plate set at power level 5, while a 10 mL round bottom was prepared with the addition of 14 (0.33 mL) drops of olive oil and 1 mL of cyclohexene. Once the contents of the 10 mL round bottom were mixed thoroughly, a boiling chip was added, and the round bottom was attached to a reflux condenser apparatus. The reflux was run for 20 minutes starting at the point in time when the mixture within the round bottom flask (that was submerged in the heated sand bath) began to boil. While the running the reflux, a 5 ¾ inch Pasteur pipette was obtained and clamped vertically with the tip facing downward. A small amount of glass wool was placed inside of the pipette and pushed down to block the narrowing end by a wooden boiling stick. A total of 100 mg (0.100 g) of celite was weighed out and was carefully added into the pipette as an additional layer atop the glass wool stopper.
Theatre as a unique, live art form does not only consist of theatrical performances that tell stories, but are significant as to how they cover certain topics that portray issues within the world. Because of this, theatre is an art form that can be used as a platform to discuss and bring awareness to issues that affect one’s community. The play, In the Red and Brown Water by Tarell Alvin Mccraney follows the upcoming of age story of Oya, a young African-American woman, that struggles to find her true self and identity within the projects of San Pere, Louisiana. With the presence of Yoruban tradition, In the Red and Brown Water explores the themes of poverty and racial injustices among minorities through the distinctive use of design clues,
Put 300 grams of ice each into 4 different 1000mL beakers. Add 0 grams of salt into the first beaker. Add 30 grams of salt into the second beaker. Add 60 grams of salt into the third beaker. Add 90 grams of salt into the fourth beaker. Put a thermometer with starting temperature of 21°C into each beaker. Record the temperature every minute for 10 minutes. Repeat the trial 5 times.
The hypothesis for this experiment was, If three different types of waters (saltwater, fresh water, tap water) are tested, then the liquids won’t evaporate at the same rate and tap water will evaporate at the fastest rate because it won’t have any non-volatile substances to hold it back from evaporating.
In the non-fiction book “The Color of Water” by James McBride, in chapter 4, James punched the boy on the bus in the face because when he tried to warn his mom through the window of where the black panther’s son was sitting, he couldn’t stretch out far enough to yell for her to hear, then the counselor came over and told him to “write her a letter” (36) as the bus drove off. James quickly became intimidated and very fearful when he noticed the Black Panther standing next to his mommy. James clearly shows that he is scared for his mother’s safety and is now irritated that he was told to sit down and be quiet. It all started when Ruth, James mother, was mugged in chapter 4, by two black men who got hold of her and stole her purse while James was with her.
To make sure it is a fair test; the procedure is repeated a couple of
heat will stay in the cup and can only escape by rising to the surface
repeat the process 3 times in total to ensure a fair test. At the end
In today's society a very large number of people possess bottled water. But does containing access to bottled water a benefit to society? Bottled water has many benefits to society. Not many people possess access to bottled water and if they had given that access they'd possess good clean water. Water is very essential for survival and possessing clean water may be even better. Also, having bottled water means you can store large amounts of water easily in case anything were to happen. Many people around the world are fortunate enough to possess that access. Possessing bottled water can help out in a natural disaster and then making the water easier to store. It may be a better way to consume water because the bottles are easy
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test is always your own serenity. If you don't have this when you start and maintain it while
Instead of having 3 LED’s as the visual output, and alternative would be to use a seven segment display to show a number telling you when a certain temperature is reached. The advantage of this is you can have more than 3 indicators, so you could have different numbers show depending on what age the person having a bath is. For example you would wait for a lower number to show if it’s a baby. The disadvantage of using a seven segment display as the visual output is it isn’t simple enough, when you have a bath you don’t need it at an exact temperature so just having 3 LED’s that light up when the temperature is in that range is enough to tell you if it too hot or too cold.
Water is the most important substance in our evolution and our daily lives. Without water,