Colorfully ColoredColorfully Colored
9-4 project 29-4 project 2
PurposePurpose
My purpose is to see do different My purpose is to see do different colors absorb different amounts of colors absorb different amounts of heat. heat.
Hypothesis Hypothesis
My hypothesis is that the green t-My hypothesis is that the green t-shirt will absorb the most heat shirt will absorb the most heat because it is the darkest color t-shirt. because it is the darkest color t-shirt. I think that the orange t-shirt will I think that the orange t-shirt will absorb the least amount of heat absorb the least amount of heat because it is the brightest t-shirt.because it is the brightest t-shirt.
MaterialsMaterials
The supplies I used were:The supplies I used were: 3 different color t-shirts 3 different color t-shirts
(red,orange,green)(red,orange,green) a heat lampa heat lamp ThermometerThermometer PencilPencil paperpaper
MethodMethod Part 1-Trial 1 Part 1-Trial 1 1)Gathered all material (fabric, ect.)1)Gathered all material (fabric, ect.) 2)Cleared work place2)Cleared work place 3)Attached heat lamp to the table3)Attached heat lamp to the table 4)Placed Green t-shirt under heat lamp4)Placed Green t-shirt under heat lamp 5)I put the thermometer in the t-shirt 5)I put the thermometer in the t-shirt 6)Turned heat lamp on6)Turned heat lamp on 7)Waited 33 minutes 7)Waited 33 minutes 8)Measured temperature 8)Measured temperature 9)Recorded data9)Recorded data Repeat steps 4-9 for other 2 t-shirtsRepeat steps 4-9 for other 2 t-shirts Repeat all steps for trial 2 Repeat all steps for trial 2
Variables The control variables for an experiment are
the things that remain the same. The control variables that I have identified for my experiment include:
The same heat lamp The same thermometer The same fabric The same amount of time under the heat
lamp
Manipulated Variables
The manipulated variables are things that change. For this experiment the manipulated variable would be the:
The color of the fabric used in my project
Responding Variables
The responding variables are things that result from the changes in the manipulated variables.
The responding variable is the temperature of the different colored t-shirts after 33 minutes.
Degrees Celsius At 33 Minutes
Color 33
Red 53
Green 59
Orange 50
Trial 1
Degrees Celsius At 33 Minutes
Color 33
Red 54
Green 56
Orange 50
Trial 2
Analysis Trial 1
44
46
48
50
52
54
56
58
60
Degrees Celsius
Colored T-shirts
Results Trial 1
Red
Green
Orange
Analysis Trial 2
47
4849
5051
5253
545556
Degrees Celsius
Colored T-shirts
Results Trial 2
Red
Green
Orange
Conclusion Conclusion
• The purpose of my project was to see which The purpose of my project was to see which color fabric red green or orange absorbed color fabric red green or orange absorbed the most heat. My results showed that by the most heat. My results showed that by using a heat lamp and different colors that using a heat lamp and different colors that green was the most absorbent of heat at 33 green was the most absorbent of heat at 33 degrees Celsius because it is the darkest degrees Celsius because it is the darkest color t-shirt. My results also showed that color t-shirt. My results also showed that orange was the least absorbent of heat orange was the least absorbent of heat because it is the brightest t-shirt. My because it is the brightest t-shirt. My hypothesis was that the green t-shirt will hypothesis was that the green t-shirt will absorb the most heat and the orange t-shirt absorb the most heat and the orange t-shirt will absorb the least heat was correct. will absorb the least heat was correct.
Sources of ErrorSources of Error
• Sources of error that could have caused my results to be inaccurate are:
• My t-shirts were not the same brand name or exact size
• The heat lamp could have moved between trials• The room temp. may have been different for
each trial• The room temp. may have disrupted the heat
from the lamp towards the color of the shirt.• The sunlight was different for each trial it could
have caused my final result to be changed.
Ways to ImproveWays to Improve
If I was going to do this project again next If I was going to do this project again next time I could:time I could:
Buy the same brand name t-shirts Buy the same brand name t-shirts Use more t-shirt colorsUse more t-shirt colors Use different temperaturesUse different temperatures Use different amounts of timeUse different amounts of time Have a controlled room temp.Have a controlled room temp. Close the blinds so the sun doesn’t Close the blinds so the sun doesn’t
interfere interfere
