Hurumanu: Solar Energy

Solar Energy

Catching the sun movie

Materials:

1.  Cups (x4)
2.   Water
3.  Tinfoil
4.  2 sheets of white paper
5.  1 sheet of black paper
6. Thermometer
7. 1 large cup
8. 1 Heat lamp

Steps

1.   Collect and gather all the materials, fill the cups to a reasonable amount [Transparent Plastic cups].
2.  Place two white paper, a black paper and tinfoil on a hard flat surface.
3.  Put two filled cups of water in the two white papers, on one of the cups cover one with a larger cup to create [the greenhouse effect] 
4.  Place remaining cup of the black paper and the tin foil.
5.   Take the temperature of all the cups, which should be relatively the same and record it.
6. Turn the heat lamp so that it's light is spread throughout all the cups.

Which surface conducts/attracts the most heat?

Time + temperature	Cup 1 White paper	Cup 2 White paper+ plastic.	Cup 3 Black paper	Cup 4 Tinfoil
0	12oC	12oC	12oC	12oC
45 minutes	15oC	16oC	26oC	25oC
15 minutes after the second reading.	18oC	18oC	24oC	23oC
30 minutes	16oC	16oC	22oC	22oC

Findings:

In the experiment,  we found that the black paper has absorbed the most heat; hence the outcome is that the cup of water from the black paper was the warmest. The cup of water from the white papers were relatively the same and one was only a degree higher. That is the same for the tin foil and black paper, there were relatively the same as well. There wasn't much difference between each of the two cups except for a degree. 

There
Conclusion:

The tin foil and the black paper had absorbed the most heat. Therefore the cups of water that has been set on top of these two sheets were the warmest. The two cups of water from the white paper, being that white bounces off the light it did not contain as much heat as the tin foil and black paper. They still were relatively the same however the one with the up on top was warmer by a degree, that goes for the black paper and tin foil as well.