Katelyn+K

__**Question:**__ Does heating then freezing a glow stick affect the time it will go out?


 * __Hypothesis:__** If I heat then freeze a glow stick, then the time it will go out will be the same as the time if it wasn't heated then froze.

2 blue glow sticks 2 red glow sticks 2 orange glow sticks 2 yellow glow sticks 2 green glow sticks 2 purple glow sticks Water Thermomitor 1 stop watch Big pot to boil the water Stove
 * __Materials__**


 * __Procedure__**
 * 1) Gather all materials you need
 * 2) Snap one of each different glow stick (by snap to make them glow)
 * 3) Time the snaped glow sticks. Record the time of when each glow stick goes out
 * 4) Fill the pot up but not to the top with water
 * 5) Turn stove on. Turn the flame control knob to 4
 * 6) Heat the water until its 45 degrees Celsius (113 degrees Fahrenheit) (use the themonitor to check the temperaure)
 * 7) When heated to the temperature turn the stove off
 * 8) Snap the other glow sticks and place in the pot
 * 9) Remove the glow sticks after five minutes
 * 10) Then wait a minute or two and place in the freezer take out after five minutes
 * 11) Time each glow stick. Record the time of when each glow stick goes out
 * 12) Repeat six or more times


 * Trial One**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 26hr 16min 26.26hr || 13hr 53 min 13.88hr ||
 * Red || 27hr 57min 27.95hr || 52hr 27min 52.45hr ||
 * Orange || 24hr 21min 24.35hr || 25hr 13 min 25.22hr ||
 * Yellow || 40hr 36min 40.6hr || 42hr 46 min 42.77hr ||
 * Green || 30hr 47min 30.78hr || 16hr 57 min 16.95hr ||
 * Purple || 24hr 57min 24.95hr || 26hr 13min 26.22hr ||


 * Trial Two**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 26hr 46min 26.76hr || 27hr 24 min 27.4hr ||
 * Red || 26hr 20min 26.33hr || 22hr 11min 22 .18hr ||
 * Orange || 21hr 47min 21.78hr || 25hr 55min 25.92hr ||
 * Yellow || 40hr 45min 40.75hr || 43hr 49min 43.82hr ||
 * Green || 31 hr 02min 31.03hr || 35hr 09min 35.15hr ||
 * Purple || 25hr 13min 25.22hr || 19hr 36min 19.6hr ||


 * Trial Three**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 25hr 13min 25.22hr || 25hr 26min 25.4hr3 ||
 * Red || 26hr 30min 26.5hr || 25hr 05min 25.08hr ||
 * Orange || 25hr 17 min 25.28hr || 25hr 37min 25.62hr ||
 * Yellow || 39hr 56min 39.93hr || 39hr 27min 39.45hr ||
 * Green || 30hr 43min 30.72hr || 31hr 31.00hr ||
 * Purple || 25hr 36min 25.6hr || 24hr 36min 24.6hr ||


 * Trial Four**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 26hr 55min 26.92hr || 25hr 41min 25.68hr ||
 * Red || 27hr 26min 27.43hr || 27hr 05in 27.08hr ||
 * Orange || 23hr 13min 23.22hr || 22hr 57min 22.95hr ||
 * Yellow || 40hr 49min 40.82hr || 41hr 03min 41.05hr ||
 * Green || 28hr 17min 28.28hr || 28hr 21min 28.35hr ||
 * Purple || 26hr 09min 26.15hr || 26hr 12min 26.2hr ||


 * Trial Five**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 26hr 13min 26.22hr || 25hr 56min 25.93hr ||
 * Red || 27hr 56min 27.93hr || 27hr 39min 27.65hr ||
 * Orange || 24hr 47min 24.78hr || 24hr 39min 24.65hr ||
 * Yellow || 38hr 25min 38.42hr || 39hr 21min 39.35hr ||
 * Green || 29hr 32min 29.53hr || 29hr 42min 29.7hr ||
 * Purple || 25hr 12min 25.2hr || 25hr 05min 25.08hr ||


 * Trial Six**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 25hr 26min 25.43hr || 25hr 56min 25.93hr ||
 * Red || 26hr 36min 26.6hr || 26hr 26min 26.43hr ||
 * Orange || 24hr 41min 24.7hr || 24hr 25min 24.42hr ||
 * Yellow || 38hr 14min 38.2hr || 38hr 09min 38.15hr ||
 * Green || 29hr 03min 29.05hr || 29hr 10min 29.17hr ||
 * Purple || 25hr 36min 25.6hr || 25hr 56min 25.93hr ||


 * Trial Seven**
 * **Glow Stick** || **Time**
 * (Room Temp.)** || **Time**
 * (Heated/Freezed)** ||
 * Blue || 26hr 13min 26.22hr || 25hr 14min 25.2hr ||
 * Red || 27hr 04min 27.06hr || 26hr 58min 26.97hr ||
 * Orange || 25hr 01min 25.02hr || 25hr 11min 25.18hr ||
 * Yellow || 39hr 26min 39.43hr || 39hr 46min 39.77hr ||
 * Green || 30hr 07min 30.12hr || 29hr 57min 29.95hr ||
 * Purple || 25hr 57min 25.95hr || 26hr 14min 26.7hr ||


 * **Glow Stick** || **Average Time**
 * (Room Temp.)** || **Average Time**
 * (Heated/Freezed)** ||
 * Blue || 26.15hr || 24.20hr ||
 * Red || 27.11hr || 29.69hr ||
 * Orange || 25.02hr || 24.85hr ||
 * Yellow || 39.74hr || 40.6hr ||
 * Green || 29.93hr || 28.61hr ||
 * Purple || 25.52hr || 24.90hr ||

10/21/10 Today I created the table for my trial one data. I also added number five to the procedure because I didn't say at first to turn the stove on and where to turn the flame to.

10/23/10 Today I changed the pink glow stick to blue because I thought the glow stick that looked pink was actually purple and the glow stick that i thought would be purple was actually blue. I also added another step to the procedure. I added step 10 that is because I also wanted to see if heating then cooling the glow stick will affect which color will go out the fastest. Also, today I started trial ones control group that is because I don't have many stop watches to do all trial one and also not doing anything to a glow sticks makes the glow sticks last longer. I also changed the 12 stop watches in the materials to just one stop watch because useing one stop watch is easier to use cuz when the glow stick goes out i can just write down the time on paper.

Observations: After the first thirty minutes from cracking the glow sticks the yellow one got a brighter light. All the others stayed the same

10/24/10 Today when I first checked the glow sticks when I woke up they were all glowing but when I checked an hour later the orange was not produceing any light so I recorded the time in my data table. Also today im starting trial twos control group. The next time I checked my glow sticks the purple now was produceing no light so I recorded the time in my data table. The third time I checked my glow sticks today the blue one wasn't produceing any light so I recorded that time i my data table.The next time when i checked my glow sticks the red one was not produceing any light.

Observations: Orange was first to go out. Purple was the next color to go out. Blue was the third to go out. Red was the fourth to go out.

10/24/10 Today the green glow stick went out and i recorded my results

Obsevations: The yellow glow stick went out

10/25/10 Today the yellow glow stick finaly went out and so I recorded that time in my data table. I also recorded the times i also got for trial two control group.

Observations: yellow was the last to go out

Observations for trial two: orange was first, purple was second, red was third, blue was forth then green was fifth to stop produceing light. Still waiting for the yellow one.

10/25/10 Today i recoreded my trial twos control group yellow glow stick time. And i started the rest of trial one and the rest of trial two. I also changed the temperature in my experiment because to me the water didn't seem as hot so I changed 40 degrees Celsius to 45 degrees Celsius, and the 104 degrees Fahrenheit to 113 degrees Fahrenheit.

10/31/10 Today i recorded the rest of my data for trial one and trial two. I also created the data table for trial three and started trial threes control group.

Observation: Since I accidently left trila ones glow sticks in the freezer over 5 minutes trial ones results are a little more bizzare. But trial two does seem to go with my hypothesis.

11/4/10 Today i recorded the results of my trial three control group.

11/6/10 I started the rest of trial 3 today.

11/8/10 Today i recorded my results for the rest of trial 3. I also created the table for trial 4.

11/9/10 Today I started trial 4's control group.

11/15/10 Today I'm recording my results for trial 4's control group. Also today I made trial fives data table.

11/26/10 Today I started trial fives control group.

11/29/10 Today I did the rest of trial four.

Observations: Well so far by the looks of my data tables my hypothesis is correct. Everything is seeming to match up with each other.

12/3/10 Today I recorded my results for the rest of trial four, and the control group of trial five. Also i created the table for trial six.

12/05/10 Today I started trial six's control group.

12/06/10 Today I made the table for trial seven and started trial sevens control group.

12/09/10 Today I recorded my results for trial six and trial seven's control group. Also, today I'm starting the rest of trial five.

Observations: Since now I just did the last control group of trial seven everything is staying the same; my hypothesis is seeming to be correct. I now have two more experimantations till I am finished.

12/10/10 Today I made my times into decimals so i can be able to average them and graph them.

12/13/10 Today I recorded my results for the rest of trial five.

12/14/10 Today I started the rest of trial six and seven.

12/15/10 Today I made my trial five times into decimals.

12/19/10 Today I recorded the rest of the times for trial six and seven.

Observations: Everything turned out the way I planned my hypothesis in the end was indeed correct!

12/20/10 Today I averaged my times for each color and made a graph.
 * __Sources__**

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