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Which colour absorbs the most heat?
5
Conclusion
Our hypothesis is correct and we learn that the darker a colour is, the more heat it can absorb. Which means the lighter the colour, the less light it will absorb.
Data
Pictures
Steps
We need:
• 7 coloured paper (Red, orange, yellow, green, blue, purple and black)
• 7 thermometers (The ones with stoppers are better to trap the heat)
• 7 measuring cylinders
• 3 Heat lights
Procedure
1, Wrap the coloured paper carefully around each of the measuring cylinders using the scissors.
2. Pour 50 ml of water into each cylinders
3, Take the thermometers out of their covers, soak them in cold water if the temperature is not the same.
4, Put the thermometers inside the cylinders (do this only after you wrapped the paper around ALL the cylinders)
5, After putting all of the cylinders under the heat lights for 3 hours, take all the thermometers out and measure the temperature. (Do it for 3 times)
Variables
Independent Variable:
- We will change the colour wrapped around the measuring cylinders.
Dependent Variable:
- We will measure the temperature of the inside of the cylinders
Controlled Variables:
- We will keep the voltage of the heat light and the amount of time the cylinders will be kept under the light the same.
Resources
http://www.ask.com/question/what-color-absorbs-the-most-light
http://answers.yahoo.com/question/index?qid=20120208170155AAppG7A
http://www.colormatters.com/color-and-heat-absorption)
Hypothesis
Dark colors absorb heat. Light colors reflect heat instead of absorbing it. So the darker a color is, the more light it will absorb, dark colours like black should absorb the most light.